Looking into Geothermal units for my home in Ohio. House has an open
floorplan with high cathedral ceilings (20ft) in lower story. About
2700 sqare feet. I currently have a propane furnace and water
heater. I've used 1500-1600 gallons a year for the last 4 years I
have kept track. Propane was $1.79 last year, this year it's $2.69 on
prepay. That means I'll average $350 a month, ALL 12 MONTHS, EVEN in
the summer, just to heat home and water. That's not even considering
my AC runs from May-September due to allergies. I haven't even
examined those costs. I've been reading alot of bad stuff about water
furnace brand, yet have several coworkers who have switched recently
and love them. None of them have had their units over 3 years
though. Considering a closed loop. Also considering in floor
circulating heat in my sunken living room floor which is currently
carpet over concrete. Any help is appreciated. Thanks. Dano.
Check into an Air to Air Heat pump as well. It will cut your propane usage
Have a cost analysis done comparing your system to a simple A2A HP
conversion as well as a geothermal system.
I do them all the time. Design temps, construction materials, Utility rates
all play into them.
I'd bet the A2A would be a cheaper option upfront & give you a decent
payback, especially in Ohio.
WaterFurnace is/was a fine brand, but was bought out a few years ago by a
Conglomerate that felt number crunching was as important as product.
Many Engineer left & started another Geo unit Co. (Climate Master possibly?)
If you want radiant as well as hot & cold air, look into a combo unit that
can heat water & air, most mfgrs have them now.
Make sure you size your buffer tank properly. You might want to look at the
desuperheater option as well for domestic hot water in summer operation.
I'm not a fan of Desuperheaters as the price is higher & the warranties are
I also like keeping these systems separate to avoid "total" failure...
Unfortunately in my area Desuperheaters are required for most Utility
A 2700 sf house in my area would need about 4 tons A/C & 85,000 Bth heat.
(Now I've done it, I've used 2 rules of thumb!!)
I'd size for about 5 Tons A/C & add electric strip heat to cover the
You can expect to pay $2500-$5000 dollars/Ton for a decent closed loop
system installed, so your looking at $12,500-$25,000 for your loops w/o the
For this price you can have your A2A heat pump & coil installed (w/a fossil
fuel kit & stat for cold weather propane heating) & buy many years plus of
propane & electricity.
I'd look at a new variable speed furnace matched with the HP to get the
highest eff. & avoid the "Frankenstein" effect...
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