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-   -   Boiler to forced air question (http://www.diychatroom.com/f17/boiler-forced-air-question-33344/)

tmbrink 12-07-2008 05:41 PM

Boiler to forced air question
 
My daughter has an 1800 sq ft cape cod style house in northern Ohio with a boiler that is in need of replacement. As she has baseboard heat, she has no air conditioning, and no ductwork. Does anyone have any comments on changeover to a high-efficiency gas furnace with air conditioning or maybe a heatpump. Or should she just replace the boiler and add high-velocity air conditioning. It all seems very expensive. She plans to stay in the house for at least 5 years. If forced air, what efficieny rating would give her the best payback. Tim.

Wildie 12-07-2008 06:50 PM

Quote:

Originally Posted by tmbrink (Post 195218)
My daughter has an 1800 sq ft cape cod style house in northern Ohio with a boiler that is in need of replacement. As she has baseboard heat, she has no air conditioning, and no ductwork. Does anyone have any comments on changeover to a high-efficiency gas furnace with air conditioning or maybe a heatpump. Or should she just replace the boiler and add high-velocity air conditioning. It all seems very expensive. She plans to stay in the house for at least 5 years. If forced air, what efficieny rating would give her the best payback. Tim.

Lots of questions come to my mind! How good is the distribution system for the baseboard heaters. How good are the base boardheaters themselves.
How good is the chimney?
If all these are in good shape, then sticking with the HW heating would likely be best!
If the chimney is no good then a high efficiency forced air furnace may be a good idea. No chimney is required!
If the house has two story's, running ductwork upstairs may be a problem. And is the basement finished?
A heat pump in northern Ohio will require some sort of additional heating. Such as electrical units! Will the electrical service panel support the extra heating load!
Questions! Questions! :(

tk03 12-07-2008 08:11 PM

If she is only staying in the home or 5 years I would just replace the boiler. If staying longer install a separate a/c system. A furnace and a/c system together one has to suffer. It either heats well and A/C OK or vica versa.
If the chimney is not good there are high efficiency sidewall vented boilers.
Just make sure there is a heat loss done for the boiler or furnace and a heat gain for the a/c.

biggles 12-07-2008 08:35 PM

i would change the boiler and redo the baseboard if not a least Slant-Fin looking for now.five years the AC thing might wear off,and people who buy it latter might just say they don't like it or can't afford to run it..stick with the basics.air systems vs hot water for heating you will find out with the air how much insulation you are missing,and not get that heat curtian along the walls hot water delievers....forget a heat pumps under 30F outside you getting ready to switch to electric heating....hows the rates there?if there is a attic or basement there plan on loosing some closet spaces on the riser or drops of duct work.

beenthere 12-08-2008 04:38 AM

A hot air system won't give her the heating comfort she is currently use to.

hvaclover 12-08-2008 09:28 AM

that is so true.

tmbrink 12-08-2008 05:11 PM

If going with a replacement boiler, what are the best brands to look at. ?


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