I live in Massachusetts and have been quoted to have installed the Carrier Greenspeed 25VNA Heat Pump as my sole heat source.

It would replace a 26 year old oil furnace...

Please post electric usage with regard to the Carrier Greenspeed 25VNA Heat Pump (before and after install would be great!)... Please also post what temp you keep your house at, how much square footage it is and how well it is insulated...

Thanks!!!!!

Thanks!!!!

However what size GreenSpeed condenser are you looking at? And what mdl air handler? This can make a big difference in efficiency numbers which of course will help you on your electric operating costs especially in heat mode.

IMO

You would do well to choose the Greenspeed system and get rid of your oil furnace. Even at the contractor’s projections and at today’s oil prices you would see a payback within 4-years. You would also have greater comfort particularly in air-conditioning mode.

Other considerations are the age of your oil tank, oil tank replacement as demanded by either your insurance company or oil supplier and liability should it leak to name a few.

Get rid of oil, replace it with the 3-ton Carrier Infinity Greenspeed you mentioned and don’t look back!

SR

tigerdunes:

According to the contractor I need "The house requires 30,000 btu’s of heat and 18,000 btu’s of cooling"...

Does that answer your questions?

I meet with the contractor tomorrow to ask more questions and answer concerns... I will ask those specific questions tomorrow and post...

fsq4cw:

Do you have or know anyone with the Carrier 25VNA? Any thoughts on how to predict electric usage or to find studies that someone/Carrier/other company has done with regard to 25VNA?

What do other heat pumps (sole heat source) cost to run in terms of KwH's?

Thanks!!!!

What size condenser was quoted and what size/model air handler was quoted?

What size heat strip?

What is your location?

Post back.

IMO

What I can tell you is that it has been our experience that Greenspeed is the next best thing compared to geothermal.

Here are some facts that may be of help to you.

As tested by ‘Natural Resources Canada’, ‘Office of Energy Efficiency’ which is an independent federal government agency, as tested in Region V, the Carrier Infinity Greenspeed (2 or 3-ton) has a HSPF of 11.30, an average COP of 3.31 and compared to an electric furnace will consume 69.8% less energy IF the Greenspeed is providing 100% of the heat required. Carrier claims a COP of 3.8 and a savings of 73.6% for an average temperature in Region IV, center north United States. Based on Natural Resources Canada’s findings, this seems reasonable.

Here are some facts and figures from a long term in depth case study (June 2011) by Carrier done in Quebec.

Balance point +4F for a 3-ton Greenspeed in the Montreal Canada region of a 3,000sq ft cottage. Based on local BIN data, hours of operation were 1,866 in A/C & 6,894 hours of operation heating. Heating mode, total 19,063kW, HP 18,146kW, and backup 916kW. Heat pump provided 95.2% of total heat. (That is very close to what is expected of geothermal in this region!)

Cost savings compared to an electric furnace were 66%, compared to oil 79% with oil costing $1/litre.

If your average winter temperature is about 26F, you could expect to save about 65% as compared to an electric furnace.

BTW: Feb. 13, 2013 price for heating oil, Montreal Canada ~$5.22/USgal! It’s hard to believe people are still heating with oil with furnaces running at about 65% efficiency; I don’t get it.

SR

The Carrier outdoor model is 25VNA024A0030

The Carrier Indoor model is CNPHP3617CA

I asked contractor what the condenser size and what mdl air handler was --> Condenser is 36BTU and model air handler is Carrier FE.

I am googleling 'Natural Resources Canada’, ‘Office of Energy Efficiency’ now...

Thanks for all the help!

I would like to know the full model number of the air handler. And yes, it does matter. Of course you will need the Infinity controller.

I would want the 9 KW prewired staged heat strip. Accept this only!

IMO

Gross Cost = $19,000 (Net after rebates= $16,350)

Equipment:
- Carrier 25VNA036A003 --> 3 Ton Variable Speed Heat Pump
- Carrier FE4ANF005 --> Variable speed high efficiency fan coil
- Carrier Programmable thermostat
- Carrier KFCEH1601315 --> 10 kw electric heater, 2 stages (5kw,15kw)

System efficiencies: 20 seer, 14 eer, 12.4 hspf

Work includes:

-Remove and dispose of oil furnace, oil tank and metal chimney.
-Installation and connection to existing duct work.
-Install new insulated steel duct work up to second floor with supplies into 3 bedrooms. (current duct work is not getting any flow)
-Install new floor return grille on first floor.
-Concrete pad for heat pump.
-All power and control wiring from existing service panel.

It sounded great but the installer had never installed this particular unit before so I was hesitant. Also on the furnace reviews website there were some conflicting reviews in terms of reliability.

Lastly I was hesitant on the noise level as it was going to be located outside our bedroom windows (as opposed to our oil furnance which was inside the middle of the house).

If you do go with it please post some pictures or videos so we can know your experience.