Limited field study of electrically heated houses

Publisher’s version / Version de l'éditeur:

Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n’arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca.

Questions? Contact the NRC Publications Archive team at

PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information.

https://publications-cnrc.canada.ca/fra/droits

L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB.

Internal Report (National Research Council of Canada. Division of Building

Research), 1965-06-01

READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE. https://nrc-publications.canada.ca/eng/copyright

NRC Publications Archive Record / Notice des Archives des publications du CNRC : https://nrc-publications.canada.ca/eng/view/object/?id=098d37ff-67fa-43c4-ac07-a3334e0782cb https://publications-cnrc.canada.ca/fra/voir/objet/?id=098d37ff-67fa-43c4-ac07-a3334e0782cb

NRC Publications Archive

Archives des publications du CNRC

For the publisher’s version, please access the DOI link below./ Pour consulter la version de l’éditeur, utilisez le lien DOI ci-dessous.

https://doi.org/10.4224/20337914

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at

Limited field study of electrically heated houses

NATIONAL RESEARCH COUNCIL CANADA

DIVISION O F BUILDING RESEARCH

LIMITED F I E L D STUDY O F E L E C T R I C A L L Y H E A T E D HOUSES b y D. R. R o b s o n A N A L Y Z E D I n t e r n a l R e p o r t No. 317 of t h e Division of Building R e s e a r c h OTTAWA J u n e

1965

PREFACE

T h e r e i s a growing i n t e r e s t in Canada in e l e c t r i c a l house heating, which i s giving r i s e in turn t o much discussion on the prediction, in advance of actual experience, of the amount and therefore the annual cost of the electrical energy which w i l l be required in any given case. In view of the many factors involved and t h e variations and uncertainties in many of them from one house t o the next, t h e r e a r e definite limitations in the accuracy of predictions based on calculations. It i s of interest, therefore, a t this stage in the development of electric heating t o obtain field r e c o r d s of actual energy consumption and a s suitable opportunities a r e presented. This h a s been done in the c a s e of five houses in the Atlantic region and the r e s u l t s a r e now reported.

The author, a mechanical engineer, i s a r e s e a r c h officer with the Atlantic Regional Station of t h e Division.

Ottawa June

1965

N. B. Hutcheon Assistant Director

LIMITED FIELD STUDY O F ELECTRICALLY HEATED HOUSES

by

D.R. Robson

T h i s field study developed when a l o c a l builder decided t o i n s t a l l e l e c t r i c heating in one of the houses in h i s subdivision. Two

other h o u s e s of s i m i l a r s i z e w e r e being built at t h e s a m e t i m e but would be oil heated. T h i s s e e m e d t o be a n i n t e r e s t i n g a r e a for study a s a l l t h r e e h o u s e s w e r e on the s a m e s t r e e t and had the s a m e orientation. T o supplement f u r t h e r t h e data collected, a n e l e c t r i c a l l y h e a t e d h o u s e i n Sydney having t h e s a m e orientation but slightly s m a l l e r i n floor a r e a was included a s was a house in S u s s e x , N. B.

,

that was a l s o slightly s m a l l e r . T h e h o u s e i n S u s s e x w a s built on a b a s e m e n t while t h e h o u s e in Sydney and t h e house i n Dartmouth w e r e both built on c o n c r e t e slabs. T h e two oil heated h o u s e s in Dartmouth w e r e built on c r a w l spaces.

DARTMOUTH

T h e h o u s e s in Dartmouth a t t h e C o m m o d o r e Company subdivision included in t h i s study w e r e on Lots 120, 121, and 124 ( F i g u r e 1). The house on Lot 120 is built on a c r a w l s p a c e t o t h e floor plan shown in F i g u r e 3 and insulated with 3 5/8 in. of insulation in t h e wall and

6

in. in t h e ceiling. It is h e a t e d with an oil-fired w a r m - a i r f u r n a c e and a c r a w l s p a c e plenum s y s t e m s i m i l a r t o ones d e s c r i b e d in p r e v i o u s r e p o r t s (1).

The house on Lot 121 is built on a c o n c r e t e floor s l a b t o t h e floor plan shown in F i g u r e 4. T h e insulation u s e d was 3 5/8 in. in t h e wall,

6

in. on t h e ceiling, and 2 in. r i g i d insulation between t h e

s l a b edge and t h e foundation wall. T h i s 2 in. of insulation followed t h e foundation wall down about 18 in. and w a s not continued under t h e slab. The top edge of t h e insulation was c h a m f e r e d at 30" and t h e floor s l a b placed t o within 1k4 in. of t h e foundation wall with 1/4 in. insulation l e f t between t h e top edge of t h e c h a m f e r on t h e s l a b and t h e foundation wall ( F i g u r e 4(a)). T h e heating s y s t e m c o n s i s t s of e l e c t r i c b a s e b o a r d units in each r o o m with individual t h e r m o s t a t control.

T h e h o u s e on Lot 124 is built on a c r a w l s p a c e t o t h e floor plan shown in F i g u r e 3. T h e insulation h e r e w a s 3 in. in t h e wall and 3 in. in t h e ceiling. T h e heating s y s t e m is t h e s a m e a s in t h e house

on Lot 120; an oil-fired forced warm-air furnace and a c r a w l space plenum system. The c r a w l space walls in both Lots 120 and 124 a r e

insulated with 2 in. of insulation f r o m the s i l l t o the ground on the inside face of the foundation wall.

SUSSEX

The house in S u s s e x ( F i g u r e 2) i s built on a basement t o the floor plan shown in F i g u r e 5. The insulation used was 2 in. under the floor, 3 in. in the wall, and

6

in. in the ceiling. The living a r e a was heated with e l e c t r i c baseboard units and individual thermostatic control in each room. The basement was not heated.

SYDNEY

The house in Sydney ( F i g u r e 2) was built on a floating concrete s l a b t o the floor plan shown in F i g u r e

6.

This house was insulated with 3 5/8 in. of insulation in the wall,

6

in. on the ceiling, and 2 in. rigid insulation around the p e r i m e t e r on the outside f r o m the s i l l t o

6

in. below grade. Heating h e r e i s by e l e c t r i c baseboard units with individual thermostatic control in each room.

INSTRUMENTATION

Each of the houses had a hygrothermograph installed ( F i g u r e 7) t o r e c o r d t e m p e r a t u r e and humidity in the living space on a continuous basis. Due t o certain difficulties the temperature-humidity r e c o r d for the Sydney house i s not a s complete a s for the other four houses.

E x t r a watt -hour m e t e r s w e r e installed in each house. In the house heated electrically t h e r e w e r e s e p a r a t e m e t e r s

on the e l e c t r i c range, e l e c t r i c water h e a t e r , and heating system with t h e one on the heating system having a demand reading that was r e s e t weekly. In t h e two oil heated houses t h e r e w e r e s e p a r a t e m e t e r s on t h e e l e c t r i c range, e l e c t r i c water h e a t e r , and on the f u r n a c e unit. All

of the m e t e r s on each house w e r e r e a d and the readings r e c o r d e d on a weekly basis.

A means of measuring the gallons of domestic hot water used in each house was accomplished by installing a water m e t e r on the cold water feed line t o each water heater. T h e s e water m e t e r s w e r e r e a d on a weekly b a s i s at the s a m e t i m e a s the e l e c t r i c m e t e r s w e r e r e a d and the readings recorded.

Weather data for Dartmouth w e r e obtained f r o m published weather r e c o r d s of t h e Meteorological B r a n c h of t h e D e p a r t m e n t of

T r a n s p o r t , Halifax Station. T h e data for S u s s e x w e r e obtained by t h e New B r u n s w i c k E l e c t r i c P o w e r C o m m i s s i o n through t h e F r e d e r i c t o n Weather Office for t h e substation a t Sussex. The data for Sydney w e r e f r o m published r e c o r d s of t h e Meteorological B r a n c h of t h e Department of T r a n s p o r t in Sydney.

With t h e exception of S u s s e x a l l data w e r e p r o c e s s e d

at t h e Atlantic Regional Station including weekly s u m m a r i e s of t h e outdoor weather r e p o r t . All data collected f o r S u s s e x w e r e p r o c e s s e d by t h e C o n s u m e r S e r v i c e Department of t h e New B r u n s w i c k E l e c t r i c P o w e r Commission.

PRESENTATION O F DATA

The weekly a v e r a g e i n s i d e a i r t e m p e r a t u r e , r e l a t i v e humidity, humidity r a t i o , and i n s i d e -out s i d e a i r t e m p e r a t u r e d i f f e r e n c e a r e shown g r a p h i c a l l y f o r each h o u s e ( F i g u r e s 8 t o 12, incl. ). T h e r e c o r d s f o r t h e Sydney h o u s e a r e not c o m p l e t e s o i t i s not p o s s i b l e t o p r e s e n t a c o m p l e t e g r a p h ( F i g u r e 12). It i s evident, however, that t h e i n s i d e a i r t e m p e r a t u r e i s in t h e s a m e r a n g e a s i n t h e other houses.

F o r e a s e of c o m p a r i s o n t h e a v e r a g e monthly indoor t e m p e r a t u r e and t h e a v e r a g e monthly indoor humidity a r e a l s o shown graphically ( F i g u r e 13).

The a v e r a g e weekly b u r n e r and fan on t i m e , f u e l consumption, and t o t a l weekly d e g r e e days a r e shown g r a p h i c a l l y in F i g u r e s 15 and 17 for Lots 120 and 124. F o r Lot 121, S u s s e x , and Sydney t h e t o t a l weekly d e g r e e days, and t h e kwhr consumption f o r heating (weekly) a r e shown g r a p h i c a l l y in F i g u r e s 16, 18, and 19. Again with r e s p e c t t o t h e Sydney h o u s e t h e r e c o r d s a r e not c o m p l e t e although t h e monthly r e c o r d s a r e r e l i a b l e ; and it h a s been n e c e s s a r y t o e s t i m a t e m o s t of t h e weekly r e a d i n g s f r o m monthly r e c o r d s f o r t h e g r a p h s shown i n F i g u r e 19.

INDOOR CLIMATE

T h e monthly values ( F i g u r e s 1 3 and 14) do not include f i g u r e s for Sydney b e c a u s e t h e t e m p e r a t u r e and humidity r e c o r d s w e r e incomplete. F r o m F i g u r e 1 3 it i s evident that the a v e r a g e indoor t e m p e r a t u r e f o r t h e t h r e e Dartmouth h o u s e s would b e

7 2 ° F (22.Z°C). When the weekly a v e r a g e f i g u r e s a r e r e f e r r e d t o ( F i g u r e s 8,

9,

and

l o ) ,

t h i s i s substantiated in that t h e r e a r e n o

m a j o r differences evident. It would s e e m , however, f r o m F i g u r e s 11 and 13 that t h e a v e r a g e t e m p e r a t u r e maintained in t h e S u s s e x house w a s 1 F d e g r ~ e lower o r 7 1 ° F (21.7"C).

The r e l a t i v e humidity maintained in t h e t h r e e Dartmouth h o u s e s follows the s a m e g e n e r a l p a t t e r n except that t h e r e c o r d for t h e e l e c t r i c a l l y h e a t e d house (Lot 121) would indicate a slightly lower a v e r a g e r e l a t i v e humidity. R e f e r r i n g t o t h e g r a p h s f o r t h e S u s s e x h o u s e ( F i g u r e s 11

and 14) it would a p p e a r t h a t t h e r e l a t i v e humidity w a s slightly h i g h e r t h a n for t h e t h r e e Dartmouth houses. T h i s is substantiated by t h e p a r t i a l r e c o r d for t h e Sydney house ( F i g u r e 12). R e f e r r i n g t o T a b l e V i t is evident t h a t t h e occupancy for t h e Dartmouth h o u s e (Lot 121) i s different than f o r t h e other four houses. In t h i s h o u s e (Lot 121) one m a n lived alone and did v e r y l i t t l e cooking. He did not occupy t h e house full t i m e but r a t h e r five or

s i x days p e r week. T h i s h o u s e w a s u s e d p r i m a r i l y a s a d e m o n s t r a t i o n home while t h e other four h o u s e s w e r e lived in by f a m i l i e s c a r r y i n g on n o r m a l activities.

F r o m t h e data collect.ed i t a p p e a r s that t h e t h r e e h o u s e s in Dartmouth (Lots 120, 121, and 124) maintained n e a r l y t h e s a m e t e m p e r a t u r e and r e l a t i v e humidity, and f r o m p r e v i o u s r e p o r t s , t h i s is

t h e u s u a l r a n g e of t e m p e r a t u r e and humidity of h o u s e s i n t h i s a r e a (2). Although it was expected t h a t t h e e l e c t r i c a l l y heated h o m e would have a slightly higher humidity, t h i s was in f a c t not t h e c a s e . T h e S u s s e x and p a r t i a l Sydney r e c o r d s would indicate that a higher r e l a t i v e humidity could b e expected in a n e l e c t r i c a l l y h e a t e d home. T h e s e e m i n g

d i s c r e p a n c y i n t h e Dartmouth e l e c t r i c a l l y heated h o m e i s explained i n p a r t by t h e difference in occupancy. NO m e a s u r e m e n t s w e r e m a d e of a i r change in t h e houses. Differences in a i r change might b e expected between t h e e l e c t r i c a l l y heated h o m e and t h e two oil heated h o m e s , but t h e s e s t u d i e s provide no b a s i s f o r establishing what t h e s e differences, i f any, might be.

HEAT REQUIREMENTS

A s u m m a r y of data i n T a b l e I d e t a i l s t h e h e a t r e q u i r e m e n t s for a l l five houses.

A s mentioned i n the section on indoor c l i m a t e , t h e infiltration or a i r change r a t e was not m e a s u r e d although living h a b i t s could b e s i m i l a r f o r Lots 120 and 124. It cannot b e s t a t e d with c e r t a i n t y that t h e y a r e , a s no detailed a t t e m p t t o o b s e r v e t h i s w a s included in the

If one a s s u m e s that the house on Lot 124 i s r e p r e s e n t a t i v e of the average house of this s i z e in this subdivision and this a p p e a r s t o be s o from previous r e c o r d s ( l ) , then the comparison m a y be made between Lot 124 and Lot 121. On this b a s i s the t o t a l cost (heating plus domestic electricity) i s 26 p e r cent higher f o r Lot 121 than for Lot 124. This i s complicated by the occupancy difference between Lots 12 1 and 124 a s explained previously. No allowance h a s been made for t h i s difference.

This sample of t h r e e houses i s not representative. It demonstrates, however, the danger of drawing conclusions from such a s m a l l number of c a s e s .

The electrically heated houses instrumented in Sydney and S u s s e x w e r e in a r e a s having m o r e degree days than Dartmouth. In

Table I, item 14, a comparison i s made of the t h r e e electrically heated houses on the b a s i s of kwhr of heating used p e r degree day p e r s q u a r e foot of floor a r e a . F o r the Dartmouth house this i s 3.28 x l o g 3 , for

Sussex 1.81 x and for Sydney 1.82 x While the Sydney and

S u s s e x houses a r e in close agreement, the Dartmouth house i s much higher. A monthly s u m m a r y f o r each of the t h r e e houses i s given in Tables 11, 111 and IV.

In comparing t h e s e t h r e e houses, occuparlcv differences must be considered. The Dartmouth house had only p a r t - t i ~ n e occupancy (one p e r s o n ) , whereas houses in Sussex and Sydney w e r e occupied by a typical family. Other variables such a s orientation, s o l a r heat gain, etc., must be considered when comparing houses in t h r e e different a r e a s . With Sussex and Sydney in such c l o s e agreement it would appear that

something other than occupancy i s needed t o explain the high cost of heating the Dartmouth house. The total e l e c t r i c i t y used in Dartmouth exclusive

of heating i s l e s s than S u s s e x by 4,533 kwhr ancl l e s s than Sydney by 5,445 kwhr (Table I). Undoubtedly t h e r e would be heat gain f r o m t h e u s e of

e l e c t r i c a l energy in appliances, lighting, and p a r t of the water heating. The e l e c t r i c a l consumption in Sus s e x o r Sydney for a l l u s e s excluding heating r e p r e s e n t s 20 t o 25 p e r cent of the total e l e c t r i c a l consumption whereas in Dartmouth the e l e c t r i c a l energy use, excluding heating, is about 10 p e r cent of the total e l e c t r i c a l energy use.

Following completion and after s e v e r a l months of

occupancy an examination of the electrically heated house in Dartmouth was c a r r i e d out because of the apparent high cost of heating. This examination disclosed the following:

(1) The insulation detail at the edge of the floor slab i s poor; the intended t h e r m a l break between the edge of the floor slab and the foundation wall was bridged in some places by a skin of concrete,

( 2 ) The insulation on the ceiling was not continuous over

the entire ceiling a r e a , A str,ip 12 t o 18 in. wide running the full length of the house front and back was left uninsulated next t o the outside wall on the ceiling, This was later c o r r e c t e d but not until the collection of data was almost completed.

(3) A panel was removed f r o m the outside of the house, and

in one of the t h r e e stud spaces uncovered, the insulation was up about 1 in. above the shoe. This may have been the only stud space insulated in this way, but i t i s difficult to s a y without removing a l l of the exterior siding.

( 4) The e l e c t r i c baseboard units a r e fastened directly t o t h e wall, and a s a r e s u l t , substantial conduction of heat from the baseboard heating unit to the wall takes place. In some instances this h a s been

s e v e r e enough to require redecorating of the wall above the unit after only one year of use.

(5)

The window drapes a r e scorched in one room where they

p a s s over the heating unit. The heating equipment manufacturer recommends that drapes be cut 1 1/2 in. off the floor and be 1 1/4 in. in front of the unit. This was not done and a s a r e s u l t t h e drapes a r e scorched.

In conjunction with this examination of the electrically heated house in Dartmouth a closer look a t the other two houses in Dartmouth was made and one observation recorded.

The insulation detail in the c r a w l space i s poor. The insulation batt i s fastened at the top of the wall and hangs f r e e s o that an a i r space of 1 to 2 in. i s created behind the insulation which leads directly into the crawl space. This h a s the effect of cutting down the insulated a r e a of the crawl space by 1/2 to 2/3.

All of the insulation m a t e r i a l used in t h e s e houses i s of good quality but the advantage in adding insulation i s lost i f c a r e i s not taken with i t s proper installation. The above i t e m s contributed t o a l a r g e degree t o the r a t h e r poor r e s u l t s obtained f r o m t h e s e t h r e e houses with r e g a r d to heating costs.

DOMESTIC WATER HEATING

In t h e t e s t data collected, t h e kwhr u s e d t o h e a t t h e d o m e s t i c w a t e r w a s r e c o r d e d a s a s e p a r a t e item. T h e s u m m a r y is

detailed in t h e following table.

House High Low A v e r a g e

Dartmouth, Lot 120 2.7 3 g a l i k w h r 1. 56 gal/kwhr 1.96 gal/kwhr Dartmouth, Lot 121 3.08 gal/kwhr 1.74 gal/kwhr 2.72 gal/kwhr Dartmouth, Lot 124 3.8 1 gal/kwhr 2. 7 1 gal/kwhr 3. 21 gal/kwhr Sydney 3.56 gal/kwhr 2. 14 gal/kwhr 2.92 gal/kwhr T h e r e is a v a r i a t i o n due t o t h e change i n t h e inlet w a t e r t e m p e r a t u r e f r o m s e a s o n t o s e a s o n which m a y account i n p a r t f o r t h e high and low a v e r a g e v a l u e s of gallons of w a t e r h e a t e d p e r kwhr. Although t h e amount of w a t e r flowing through t h e w a t e r h e a t e r w a s m e a s u r e d , t h e amount of w a t e r h e a t e d t o t h e t e m p e r a t u r e s e t t i n g w a s not. T h e h o u s e on Lot 120 had a n a u t o m a t i c w a s h e r - d r y e r combination unit.

In v e r y g e n e r a l t e r m s , however, i t c a n b e s a i d t h a t f r o m 2 t o 3 gallons of w a t e r will b e h e a t e d p e r kwhr in t h e a v e r a g e d o m e s t i c establishment.

OBSERVATIONS

With t h e r e s u l t s a v a i l a b l e f r o m only five h o u s e s i t i s

difficult t o d r a w any f i r m conclusions. S o m e g e n e r a l o b s e r v a t i o n s , however, a r e p o s s i b l e :

( 1 F r o m t h e d a t a collected it would s e e m t h a t t h e e l e c t r i c a l

i n d u s t r y ' s e s t i m a t e of 25 t o 30 p e r cent i n c r e a s e i n o v e r - a l l c o s t a t p r e s e n t r a t e s when heating with e l e c t r i c i t y (and insulated p r o p e r l y f o r

i t ) i s a r e a l i s t i c one,

(2) If one i s t o e s t a b l i s h r e l i a b l e a v e r a g e f i g u r e s f o r e l e c t r i c heating, a l a r g e n u m b e r of c a s e s m u s t b e studied. It follows a l s o t h a t a n y p r e d i c t i o n of anticipated c o s t s m a d e on t h e b a s i s of s u c h f i g u r e s f o r any one h o u s e m a y d i f f e r substantially f r o m t h e a c t u a l cost.

( 3 ) T h e r e is a need for m o r e a c c u r a t e evaluation of t h e infiltration or a i r change in houses. C a r e f u l t e s t s will b e r e q u i r e d t o e s t a b l i s h i f t h e r e i s in fact a difference in infiltration between

e l e c t r i c a l l y heated and oil heated houses. REFERENCES

( 1 ) Robson, D. R. Heat Requir ernents for Houses Halifax 1960-1961. National R e s e a r c h Council, Division of Building R e s e a r ch, Internal Report No. 271, October 1963.

Robson, D. R. T e m p e r a t u r e and Humidity in Houses Halifax 1960-1 961. National R e s e a r c h Council, Division of Building R e s e a r c h , I n t e r n a l R e p o r t No. 261, M a r c h 1963.

T A B L E I

SUMMARY O F DATA - FIVE HOUSES House Lot 120, Lot 121, Lot 124,

Dartmouth D a r t m o u t h Dartmouth S u s e e x Sydney No.

-

I t e m Calculated H e a t Lose, B tu/hr F l o o r A r e a

-

S q F t D e g r e e Daye T o t a l E l e c t r i c i t y Used, kwhr T o t a l F u e l Oil Used

-

Imp. Gal. E l e c t r i c i t y

-

S p a c e Heating

-

kwhr E l e c t r i c i t y

-

Cooking kwhr E l e c t r i c i t y

-

Water Heating

-

kwhr E l e c t r i c i t y

-

Miec. kwhr E l e c t r i c i t y

-

T o t a l E x c l u s i v e of Heat, kwhr 11,325 T o t a l B u r n e r Operation h r 1 , 7 7 8 T o t a l F a n O p e r a t i o n h r 3 , 9 9 4 kwhr ( ~ e a t i n ~ ) / ~ a l . F u e l Oil k w h r / ~ e ~ r e e Day (Heating Only) kwhr/" D / S ~ F t F l o o r A r e a ~ a l / " D / S ~ F t F l o o r A r e a E l e c t r i c i t y

-

Heating kwhr ( C o r r e c t e d t o 7600" D) E l e c t r i c i t y T o t a l kwhr ( C o r r e c t e d t o 7600°D)

$6

.d +

a';

LC 24 Q) N 4

*

9 N M P A 0 0 9 I n * 0 4 - L

i t

b . + * m m

. .

"

_b

*

m In- k k X + 4

*

m 0

9

$

p

;

g

-

'

- 4 k m h _I c , Q) I

2

a"

c, 9 a I #

4

,

8

,

~ I PC m I A + d I n * * a a r N u " *

3

4 F 0 F

P e r i o d 1963 Jan. 7

-

Feb. 4 Feb. 5

-

Mar. 4 Mar. 5

-

Mar. 31 Apr. 1

-

Apr. 30 May 1

-

May 28 May 29

-

J u n e 26 June 27

-

J u l y 25 July 26

-

Aug. 26

i

i Aug. 27

-

Sept. 25

1

Sept. 26

-

Oct. 21 Oct. 2 2

-

Nov. 28 Dec. 28

-

Jan. 9, 1964 TOTALS T A B L E

IV

SYDNEY

-

MONTHLY SUMMARY E l e c t r i c a l E n e r

av

(kwhrl Used

Heating Range W a t e r H e a t e r Misc. C l o t h e s D r y e r T o t a l

2,100 11 1 392 387 8 2 3,072 D e g r e e Days Heating kw/" D. 1. 62 Average

TABLE V DETAILS

House Lot 120

Adults 2

C h i l d r e n 2

Lot 121 Lot 124 S u s s e x Sydney

Heating S y s t e m W a r m A i r E l e c t r i c B a s e b o a r d W a r m A i r E l e c t r i c B a s e b o a r d E l e c t r i c B a s e b o a r d - F u r n a c e Output 92,000 ~ t u / h r F i r eplace No Yes

Exhaust F a n B a t h r o om B a t h r o o m B a t h r oom Kitchen None

Cooking Range E l e c t r i c E l e c t r i c E l e c t r i c E l e c t r i c E l e c t r i c Water H e a t e r E l e c t r i c E l e c t r i c E l e c t r i c E l e c t r i c E l e c t r i c Washer Combination Unit Wringer Type Wringer Type Automatic D r y e r Yes (Vented)

(b)

Lot 1 2 1

-

Dartmouth

(a) Sussex House

(b) Sydney House

/-

4"

THERMAL BREAK

NOTE.'

F I G L I R E 4 ( a )

E D G E I N S l l L A T l O N D E T A I L

D.B.R.

IHDOQW

CLIFAATE

OF

BU1101991GS

N.

R.

C.

DARTMOUTH,

N.S.

LOCATION --

DEC J A N FEE M A R A P R

.

M A Y

.

JUNE* JULY A U G SEPT* OCT NOV

1962 1963

BR. ₃₄₀₉ - 2

D.B.R.

l M D O O W

CLIk'MTli

!It:

B u l L D i l i G s

N.

R. C.

DARTMOUTH, N.S.

L O C A T I O N B U I L D I N G

LOT121

DEC

.

JAN F E E MAR

.

APR MAY JUNE JUNE AUG SEPT OCT

.

N O V @

1 9 6 2 1 9 6 3

811 3 4 0 9 - 3

D.B.R.

INDOOR CLIMATE OF B U l l D l H G S

L O C A T I O N

DARTMOUTH

LLL,--.-

N

S

BUILDING

LOT

124

B R . 3409-4

INSIDE AIR TEMP, OF INSIDE _DIFFERENCE,

-

OUTSIDE A I R TEMP _OF RELATIVE HUMIDITY, _{PER CENT} HUMiDlTY RATIO I N GRAINS _{MOISTURE PER LB OF DRY AIR} OF b, * (D - N U - N W O V m * - - 0 0 o o o o o ~ S ~ ~ z o o o o o o o o o o ~ ~ ~ ~ ~ o ' z ~ ~ o I- 0 C)

co

0 D m m rV 0 2 ₀ Z C D

cn

Z -+l m a i

-

4 I D a D D I) I D 4 a C

-

c r a C Q, Z J m Z ₀ C C t- 4 D C C, V) m -0 --I 0 0 4 Z 0 <

-

N N -I -I I - - N UI 0 ul u l 0 U I 0 U I 0 m 0 OC O c

LOT 124 7 0 21

-

_{LOT 120} O C 7 0

-

6 8 1 1 1 1 1 1 1 1 1 1 1 1 I 2 0

DEC J F M A M JUNE J A S 0 N DEC

SUSSEX

-

LOT 121

-

-- -

_-

70

-

-

7 0 2 1 2 0 DEC J F M A M JUNE J A S 0 N DEC

23 22 O C 21

FIGURE

I3

MONTHLY AVERAGE INDOOR TEMPERATURE

8 r f . 3 4 0 . 9 - 7

DEC J F M A M J U N E J A S 0 N DEC 70

r

LOT 121

1

70 LOT 124

'10

R H 4 0

---

---

3 0

FIGURE

14

MONTHLY AVERAGE INDOOR RELATIVE HUMIDITY

BR. 34Qy- 8

30

-

-

2 0 I S l l l S l l l l l l l

DEC J F

M

A

M

JUNE J A S 0 N OEC

D.B.R.

I I S D O O R

CLIrm:LTE

O F

BU1

kDI

tZGS

N.

R.

C.

D A R T M O U T H ,

N.S.

LOCATION --- . BUILDING -_._

L O T

120

DEC JAN FEB a MAR APR MAY JUNE JULY AUG a SEPT OCT a NOV *

D.B.R.

0

h:Ll;.:.".hTE

O F

B'rfl

L8

E :!ES

N.

R.

C.

D A R T M O U T H ,

N.S.

L O C A T I O N - _ _ . . - - . - BUILDING --

L O T 121

__-.

_

.. -- _--_ --_--.___-p

D E C JAN F E B M A R APR M A Y J U N E * J U L Y AUG S E P T OCT NOV

1962 1963

D.U.R.

I

t ~ r 1 ~ 2 3

CLI~.:ATE

O F

U U O L ~ ~

;:a

N.

R.

C.

DARTMOUTH,

N.

S.

L O C A T I O N . . . BUILDING

LOT

124

.

DEC JAN FEB M A R A P R M A Y J U N E 0 ' J U L Y AUG S E P T - O C T N O V

SUSSEX,

N.B.

L O C A T I O N . __._ .__ - - . _ - - .-.. B U I L D I N G

H O U S E

- - _ 20 - 500 ,. 300 , ~- , 8

DEC JAN FEB MAR APR MAY JUNE JULY AUG SEpT OCT N O V

D.B.R.

ICJDQOR CLBTJA? E OF DIIILDIEJGS

N.

R.C.

SYDNEY, N.S.

L O C A T I O N _--_ . _ . . BUILDING

HOUSE

- - - ----

a D E C a JAN a FEB a MAR a APR a MAY a JUNE JLlLY a AUG a S E P T a OCT a NOV a