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Furnace Replacement question
I guess I hit send by mistake.
The best Kenmore gas has an energy factor of 63. Tankless go from 82-90 a certified rating to use. A Takagi or Rinnai can save you alot and at near 200,000 btu will heat all the water a household of 3 needs. I use a 120,000 Bosch and it never needs to be on high with 35F incomming water. Get bids on 94.5% efficient furnaces. In Chgo R 35 is code but R 60 is optimal , insulation has no effect on mold if its done right, figure what you have in inches and multiply x 3.5 per inch for an aproximate R value. 2 tanks, why, it is a waste over 1, thermal loss up the flue is the biggest thing. |
#2
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Furnace Replacement question
m Ransley wrote: I guess I hit send by mistake. The best Kenmore gas has an energy factor of 63. Tankless go from 82-90 a certified rating to use. A Takagi or Rinnai can save you alot and at near 200,000 btu will heat all the water a household of 3 needs. I use a 120,000 Bosch and it never needs to be on high with 35F incomming water. Get bids on 94.5% efficient furnaces. In Chgo R 35 is code but R 60 is optimal , insulation has no effect on mold if its done right, figure what you have in inches and multiply x 3.5 per inch for an aproximate R value. 2 tanks, why, it is a waste over 1, thermal loss up the flue is the biggest thing. Thanks a bunch to all....great information. On the issue of 2 water tanks...... is it necessary to replace them as they are 12 years old? They do a good job now, but I am a bit concerned that 12 years of sediment/build-up inside the tanks might have rendered them dangerous (just my guess since water always has sedimentation/build up)....any thoughts? Also, to save on gas bills, I set the water temperature to 120 F (down from 140 F) on the water tanks. The water does not come out very hot now, but hot enough for our daily needs. 2 tanks for just the two of us is really not necessary. We can live with just one. The builder put 2 tanks for some reason ....may be because the previous owner had a big family and requested 2. I am the second owner. Is it ok if I just turn the temperature all the way down on one of the tanks? Will this effectively shut it off or is it better to disconnect it physically, I mean the plumbing to and from it? Since I dont want to use one of the tanks, I dont want the pilot light to be on, wasting gas. Thanks. |
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