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used as the means of transferring energy from or to the ground. enable Canada to conserve valuâ€" alblefonilfu:hls,atthelmtimn eliminating the harmful environâ€" mental impacts associated with burningtheoefuil:.“ Earth energy pumps can extract heat either directly from the ground or fromâ€"water in the ‘gy heat pumps, this low grade fitt_ (between ‘â€"2° C and 10°C) Heat pumps draw free energy from the earth ture of the earth remains relaâ€" tively constant throughout the c i on ce ons ine mmmm‘fi&um yriad! w ST. ACKA SHEL_F FACTORY OUTLET c FURNITURE SHOWROOM DESKS "BOOKCASES® SHELVES S STACKABLES ©COMPUTER FURNITURE® TABLES BUNK BEDS UBINS PCHAIRS SZLAMPS® ACCESSORIES@ CLOSET ORGANIZERS 575 Kumpf Dr. Waterl00 {corners Northfield Dr. & Hwy. 86) 884â€"6400 Tues.â€"Wed. 10:30â€"5:30 p.m. Thurs., Fri. 10:30â€"8:00 p.m. Sat. 10â€"4 p.m. DON‘T MISS STACKâ€"Aâ€"SHELF‘s AMAZING BIANNUAL ... ofp OFF wp 1073 TS SEC"EP‘?{-‘?\‘JSED IK & G. s, But a few feet _ and reliable as earth enerâ€" ground Joop) The refrigerant then passes through a compressor where its pressure and temperaâ€" g:omniaeqw%zvel gnble space heating. From the comâ€" pressor, the refrigerant moves to the second heat exchanger, where heat is removed and pumped into refrigerant reverts to a liquid. It thgplguthmughm.ex];;'fio: refrigerant gas through an evapoâ€" ration and condensation cycle. A compressor pumps the refrigâ€" erant between two heat exchangâ€" ers, one of which is in contact with the earth energy source and the other with the home‘s heating ducts. In the first heat exchanger, the refrigerant evaporates into a gas as it absorbs heat from its How they work Great for C Shirts * Toys Towels * Diapes CRASHER SPECIAL STACKABLE BASKETS Limited Quantities 99 hold air and released into the domestic hot water system. The system thus acts as a central air conditioner in summer and as a heat source in winter. Groundâ€"source systems As their name implies, groundâ€" source heat pumps (also known as "‘closedâ€"loop" systems) . recover Mdhmyfiomthemnd._h thc-lymm,-bopdypeud plastic pipe is buried in the ground and connected to a heat on the surface. An antiâ€" m”lution which has been enchanger" Where ‘i Bepina the heat exchanger to provide water hI:ltnII‘; summer, the flow of the heat to bete::nctcd fivme‘hl:: vdnwhuoigwnmd SECONDS SALE SAT. APRIL 28, 1990 9:00 w 4:00 P.M. 10°%° OFF ALL REGULAR PRICED MERCHANDISE. Plus ... many instore specials! water in underground aquifers. TThe aquifer is tepped by ariiling a well. A second well is used to return the water to the aquifer once it has passed through the system. Since openâ€"loop systems merely water, they have no detrimental impuctontheu;c:‘vir&nmem. This is assuming system is well designed (with proper return of the water to the aquifer) and that water movement and cooling does not seriously affect the water are placed in trenches about 1 m deep. On average, 150 to 180 m of Llp:gm uqumd per tonne of eat pump capacity. . Before installing such a system, the groundwaterâ€"source should be tically. The length of the pipe will dependmuwdmp?:dnd- ts uts ted epmrerge i ts lml,"&'mm conditions, and a number of other variables. In method involves drilling a bore hole in the ground and inserting a Uâ€"shaped pipe. A practical rule of loop" systems) extract heat from ground around the pipe. heating capacity. chilled â€"by â€" the heat pump . Groundwaterâ€"source heat DUE TO CONSTRUCTION NO ACCESS OFF HWY. #86 NO ACCESS OFF NORTHFIELD DR. aquifer £E, WEDNESDAY, APRIL 25. aquifers is limited or non existent. If your home needs a new furnace and you are also considerâ€" ing central air conditioning, a heat pump may be a costâ€"effective solution. If you decide to install an earth energy heat pump, reâ€" member that most homes should also have a supplementary heatâ€" ing system, usually electric duct costs by up to 65 per cent. Howevâ€" er, depending on the circumâ€" stances, these systems may be more expensive to install than most other heating and cooling systems. On the other hand, they are seldom limited in terms of location, and work effectively even on small urban lots. Groundwaterâ€"source _ systems are generally not suitable in Installation of an earth energy heat pump is not a job for doâ€"itâ€" yourselfers; all such systems should be designed, installed and tested to ensure it does not con pended solids, which can damage the system. The water should also be tested for hardness, acidity and iron content. This testing wil} required for the installation. be conducted by the contractor, You should also consult local environmental authorities to deâ€"