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Old 12-21-2009, 05:06 AM   #1
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Hey Yuri, Been, Plumber100 and all Mi techs.


Remember when 100k BTU was the most common sized standing pilot furnace for homes from 900 sq ft to about 1800 sqft?

Well this is no big revaluation, but 75k 80% is the most common now.

So I guess I 'm saying 75k is the new 100k. Would you guys agree?

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Old 12-21-2009, 06:29 AM   #2
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Hey Yuri, Been, Plumber100 and all Mi techs.


Yeah, the new "Yeah that will he this place size".

75,000 or 80,000(depending on brand) is the most common around here for that size home.

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Old 12-21-2009, 10:35 AM   #3
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Hey Yuri, Been, Plumber100 and all Mi techs.


If a guy uses an 80K in a 1000sq ft home than he should be shot.

An 80k means the Mfgr's using 20k per burner. You can get a 60k furnace.

75k would have a 50k next size down. Cutting it a little close with that size on a 1000sq ft home.
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Old 12-21-2009, 11:26 AM   #4
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Hey Yuri, Been, Plumber100 and all Mi techs.


I did the heat calc on my house, 1640 sq ft as listed in sale...less then 54k
This is with windows replaced & more insulation (R7 upgraded to R38)
Boiler listed as 113.59 MBH, 86% rated = ~97.7
So almost 2x what we needed

With the new additions, possibly in the future heating the walk up attic I'm at 97k w/close to 3000 sq ft house

Our boiler is 22 years old & oil guy says it needs to be replaced
Wanted to wait until we had the new space completed
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Old 12-21-2009, 01:33 PM   #5
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Hey Yuri, Been, Plumber100 and all Mi techs.


Quote:
Originally Posted by Scuba_Dave View Post
I did the heat calc on my house, 1640 sq ft as listed in sale...less then 54k
This is with windows replaced & more insulation (R7 upgraded to R38)
Boiler listed as 113.59 MBH, 86% rated = ~97.7
So almost 2x what we needed

With the new additions, possibly in the future heating the walk up attic I'm at 97k w/close to 3000 sq ft house

Our boiler is 22 years old & oil guy says it needs to be replaced
Wanted to wait until we had the new space completed

With a boiler the comfort is a little different. I always get dry nostril in homes with hydronic systems.
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Old 12-21-2009, 01:41 PM   #6
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Hey Yuri, Been, Plumber100 and all Mi techs.


Yeah our humidity level has dropped quite bit this year, around 35%
Had some dry cold air come in early
1st time we have had static electricity in 6 years here
Basement is still up around 60%
Maybe I should leave the top off the fish tank for evap
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Old 12-21-2009, 05:37 PM   #7
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Hey Yuri, Been, Plumber100 and all Mi techs.


Scuba Dave, why is your boiler tech saying your boiler should be replaced at age 22? I don't want to jink my ole American Standard Boiler but I have been here for 34 years and it was fairly new when we moved in -- has had a few parts over the years but it is cleaned yearly and is still going fairly good I think. I know, I know have never upgraded the burner which is costing me $$ undoubtedly am using around 800 gal /year # 2 and that includes hot water approx. 1400 sq ft single level and one zone, about one third on cellar with the rest crawl spaces.
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Old 12-21-2009, 06:22 PM   #8
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Hey Yuri, Been, Plumber100 and all Mi techs.


I forget exactly what he said....but its on it way out
Possibly due to neglect as it was mess when we 1st moved in
He spent 1/2 day cleaning it up the 1st time he was here
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Old 12-21-2009, 06:28 PM   #9
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Hey Yuri, Been, Plumber100 and all Mi techs.


Clover we don't sell mids anymore in Canada. Only 90% and higher. Lots of grants to improve insulation and windows etc so every home is different. I do very few old shacks as they can't afford my service. Leave that to the gas co and their consumer service.

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