twall1716
New Member
Posts:7
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| 24 Apr 2008 11:20 PM |
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I have a 12 year old 3200 sq ft house in southern New Jersey that I was to convert to geothermal heating and cooling. My HVAC guy has recommended a WaterFurnace Envision R-410 Dual Capacity Unit Model #NDV064 with 64000 BTU.
Is this the right capacity for this size house?
Thanks!
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Palace Geothermal
Veteran Member
Posts:1609
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| 24 Apr 2008 11:41 PM |
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Hi twall1716,
Welcome to the forums. We have no way of knowing the answer to your question. A comprehensive heat load analysis needs to be completed on your house in order to determine what size heat pump is needed.
You should ask the HVAC guy to see his heat load calcs. IF he doesn't have them, then he guessed on the heat pump size.
Also I doubt that the WaterFurnace NDV064 unit will give you 64000 BTU unless you are on an open loop well. |
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Dewayne Dean
<br>www.PalaceGeothermal.com<br>Why settle for 90% when you can have 400%<br>We heat and cool with dirt!<br>visit- http://welserver.com/WEL0114/- to see my system |
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Eric D
Basic Member
Posts:104
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| 25 Apr 2008 06:50 AM |
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Twall,
Welcome to the GreenBuilding Talk! What did the other installers quotes come up with for heat loads? You did get other then one company's quote, right? If not I would highly suggest you have at least two and maybe even four.
As a home owner you shouldn't be expected to understand heat loss calculations, but you must get more then one quote. If you have two different companies telling you the same thing then your odds of it being correct go up. Don't trust just one quote.
Please keep us posted on what you end up with.
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| Eric D<br>Southern Michigan |
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twall1716
New Member
Posts:7
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| 25 Apr 2008 07:07 PM |
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Thanks for the advice geodean and Eric D.
The system quoted to me will be an open loop system, so 64000 BTU from the WaterFurnace NDV064 is quite probable. I live over one of the largest aquifers in the northeast so there's abundant ground water to draw from.
The biggest problem I'm having is finding people who will actually show up to look at the house and give me a quote. I contacted five separate geothermal HVAC guys. I got a quote from one of them. Two of them told me I live too far from them (less than 30 miles from each) and the last two never returned phone calls to set up an appointment.
Should it be this hard to find people who want my business?
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Eric D
Basic Member
Posts:104
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| 25 Apr 2008 08:01 PM |
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Posted By twall1716 on 04/25/2008 7:07 PM
Thanks for the advice geodean and Eric D.
Should it be this hard to find people who want my business?
To answer your question in short, NO, it shouldn't be so hard. The fact of the matter, geothermal installation are ramping up year by year, and not enough skilled folks to fill the need. For now I would suggest that you call the manufactures and ask them for names of someone in your area. Hope you find a good deal. |
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| Eric D<br>Southern Michigan |
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GeoTemp Services LLC
New Member
Posts:24
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| 08 May 2008 10:32 PM |
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Im a Geo Comfort dealer and opperate in NY. How far are you from NY? We are a elite company with extensive geoThermal experiance.
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twall1716
New Member
Posts:7
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| 09 May 2008 07:31 AM |
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I'm in South Jersey, about a 2 hour commute from NYC. Any Geo Comfort dealers in this area that you are aware of? Thanks. |
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hcp27golfer
New Member
Posts:15
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| 10 May 2008 09:03 PM |
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Twall,
There is a Geo Pro Dealer in Bordentown, NJ. 1-877-CMS-GEO1 |
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pealman
New Member
Posts:6
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| 10 May 2008 09:24 PM |
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Geotempservices -please provide me with your contact info> I live in southern NY and I would like to do a geothermal system.
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GeoTemp Services LLC
New Member
Posts:24
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| 10 May 2008 10:08 PM |
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Im waiting for my advertisement on this site to post. I listed it 48 hrs ago and well for now Ill post it here.
GeoTemp Services LLC
Warwick NY 10990
(845)986-6850
GeoTempServices.com
(sites still under construction very limited now)
We are actually in a transition period from doing away with the conventional end of the business and going soley Geothermal.
We do waterloop design,sales,installation,and service We are GeoComfort dealers. Have several types of systems up,running,and on display if you are willing to take a road trip. Feel free to call anytime
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TechGromit
Advanced Member
Posts:634
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| 11 May 2008 12:53 AM |
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Posted By twall1716 on 04/24/2008 11:20 PM
I have a 12 year old 3200 sq ft house in southern New Jersey that I was to convert to geothermal heating and cooling. My HVAC guy has recommended a WaterFurnace Envision R-410 Dual Capacity Unit Model #NDV064 with 64000 BTU.
Is this the right capacity for this size house?
Thanks!
That's were I'm from, Where in Southern NJ? I live in Galloway and I use Grasso Air Conditioning & Heating, they are located in Hammonton, NJ. |
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GeoTemp Services LLC
New Member
Posts:24
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| 11 May 2008 10:22 AM |
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Listen everyone wants to know if there units right sized for them. Its not that simple and any Geo contractor who says it is or makes it seem like it is is scarey to me. Retros need proper calcs done. Hows the homes insulation,windows,construction,exposure,property,occupants,and soooooo much more.Are there other improvements being made to help the heat pump? We have homes that are 3800 sq running off a 48,000 btu unit. Other homes might need 2x that depending on all the above. No cookie cutter installs with Geo I dont care what anyone else says. A good contractor will take the time to design 100% the proper system for the home owner.
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twall1716
New Member
Posts:7
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| 11 May 2008 05:45 PM |
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Thanks TechGromit and hcp27golfer. . .I'm in Williamstown and will check out the outfits you referred to me. |
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TechGromit
Advanced Member
Posts:634
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| 12 May 2008 12:07 AM |
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Posted By GeoTemp Services LLC on 05/11/2008 10:22 AM
Listen everyone wants to know if there units right sized for them. Its not that simple and any Geo contractor who says it is or makes it seem like it is is scarey to me. Retros need proper calcs done. Hows the homes insulation,windows,construction,exposure,property,occupants,and soooooo much more.Are there other improvements being made to help the heat pump? We have homes that are 3800 sq running off a 48,000 btu unit. Other homes might need 2x that depending on all the above. No cookie cutter installs with Geo I dont care what anyone else says. A good contractor will take the time to design 100% the proper system for the home owner.
Here's a good question, is your basement Insulated? I've heard one guessimate that if my basement was insulated, I could save about 20k btu heating loss. I wonder if that would be enough to shave a 1/2 ton off your system in the final load calculations. The investment on more insulation might be worth it in geo installation savings. |
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GeoTemp Services LLC
New Member
Posts:24
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| 02 Jun 2008 11:29 AM |
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couldnt agree more.Insulation is a very huge part of the envelope.
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