Relocate Furnace - Mid -high Efficiency - HVAC - DIY Chatroom Home Improvement Forum

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Old 06-16-2010, 01:25 PM   #1
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Relocate Furnace - mid -high efficiency

I live in Toronto.
The house is was built in 1902.
Major renovations to the electrical, heating and plumbing were done in 1995.
I am going to build a walk out entrance for the basement.
As a result, I will be underpinning the floor to increase ceiling height.
In order to maximize the living space downstairs, I must relocate the current mid-efficieny furnace - that is currently sitting smack dab in the center of the floor.
My question is for anyone HVAC or homeowners who have undergone a similar project:

1. As a homeowner how much do you beneift from going from mid-efficiency to high efficieny? ($ savings on energy bill vs cost)

2. Did you relocated the duct system?

3.How much did it cost (ball park)?

4. If you did relocate the furnace - who did you use?


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Old 06-16-2010, 07:07 PM   #2
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Not specific to you but a general $ savings....

For 3000 heating hours a year with a gas cost of $1 per therm and a 100K btu furnace

70% AFUE costs $3200 a year to heat
80% AFUE costs $2800 a year to heat
95% AFUE costs $ 2400 a year to heat


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Old 06-16-2010, 07:21 PM   #3
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If you have a mid efficiency unit it will still need to be connected to the chimney and long chimney runs over 10 feet can be a problem with mids. Mid efficiency furnaces are no longer available in Canada. Only 90% and higher as of Jan 1/2010. You should think about the future as when yours goes you will have to buy a high efficiency. I would probably replace it now if it is 15 yrs or older and eliminate the chimney and use an electric water heater. If you keep it make sure your allow for future venting of a high efficiency unit and get some advice from a heating contractor about where it can be vented. People build rec rooms, closed ceilings and have huge problems installing a high efficiency later.
"Cut it twice and it is still too short".
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ducts , hvac , hvac installation , underpinning

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