Pros: easy to install yourself
Cons: none so far
The unit is quiet and the fan has no perceptible noise. The most noise is made from the adjustable water flow valve. The TT038 has been on line now since August 1st and so far it is working perfectly in cooling mode only so far. Current draw is just under 5 amps at 220VAC. That should put my winter heating bill about 1/6 of what it was last year. The only power draw I still have to measure is the water pump draw (about 6 gallons per minute) when the unit is in the second stage of heating which won't come for a while yet maybe January or February.
Purchased a new electric water heater last year and I am having some problems with it leaking and Sears not wanting to cover it under warranty. So the water heater (desuperheater) is not connected yet. I also purchased the aux heater (10KW) which will come on if the unit is not capable of producing enough heat, but hope it never comes on, we will see when it hit -35F this winter.
I was quoted $15,000 from a local dealer for the unit and installation. DIY was the only way to go.
Update: January 2, 2010
My Climatemaster is running great. We have had sustained temperatures below 20ºF for more than 3 weeks now and the unit is still keeping us nice and warm (68ºF). This unit provides a very constant heat making the house feel warm without drafts and I do not lower the temp at night. Present incoming well water temperature is 44ºF and HP exit water temperature is 40ºF. The unit is still running in the first stage of heating (I have not seen it go to stage 2 yet). On a couple of particularly cold (5ºF) windy days the unit ran for 16 hours total turning on and off throughout the day (still in stage 1).
I was finally able to measure the pump current which is 3.5 amps @220V. So combining the water pump with the HP unit's just under 5 amps puts it at about 8.5 amp draw when running (1.87KW). I am presently paying 16.5 cents per KW, so the coldest day so far has cost me $4.96. If I averaged that for 30 days, my heating bill would be $148.80!! So far the unit is running only about 12 to 13 hours per day and I'm sure it will run longer and will get into stage2 heating when it gets down to -20ºF. Interesting thing is, I can barely see any difference in current draw from stage 1 to stage 2. (maybe a 1/4 of an amp). Well Pump amps will go to 4.5 when stage 2 kicks in.
Looking forward to seeing how things run when it's -20ºF
Update March 1, 2010
Climatemaster still running great. In the middle of January I finally connected up the De-Superheater, this unit heats my hot water. Comparing last year's electric use in February to this year I have cut my household electric bill in half and reduced my heating bill by 75%. I will say that the Climatemaster Tranquility 27 is doing its job beautifully. Incoming water from the well is holding at 44 degrees, so I think that is the "constant" ground temperature here in Vermont. Althought we had several weeks of single digit temperatures there were only a handful of below zero nights. The unit never went into Stage 2 heating so it continues to work very well using only stage 1.
For the many people who have emailed me asking about my experience I want to say thanks for the interest. I also want to include the Geothermaldiy.com website since that is the first question asked. Also for those of you that have hot water heat,Climatemaster does make a water to water heat pump.