PDA

View Full Version : Considering heat pump instead of oil furnace



rauchplus2
07-13-2008, 02:16 PM
I live in Pennsylvania in a two story house that is approximately 2500 square feet. I currently have an oil furnace, 81 afue, with oil prices around 4.50 a gallon. I generally use between 700 to 900 gallons of oil a year. My oil furnace as well as my outside air conditioner is approximately 11 to 12 years old and I'm interested in replacing both. Reason is, during the winter months my electric bill is approximately $300 not counting in the $300 a month I put away year round to pay for oil. My neighbors are paying mid to low $200's for just electric heat.

Is it worth it for me to replace both systems and get a heat pump and air handler(with electric backup) for my basement?

I am looking for high efficiency and willing to pay if the cost is worth it. Any recommendation on what brand and units I should buy?

Also, I've had one estimate so far and the technician recommended converting to a 2 zone system. Is that appropriate as my upstairs is generally different in tempature to the first floor? I apparently have from the basement a vent that lead solely to the second floor.

beenthere
07-13-2008, 02:21 PM
You have a 300 dollar a month electric bill in the winter, and you have oil heat?

Whats your electric bill in the summer.

Whats your electric rate.

heatpumpguru
07-13-2008, 03:25 PM
In our area of PA we get a BIG BREAK on electric from PECO 6 cents above 600KW 8 months out of the year.We install Heat pumps on almost every LP and oil heater we see.

rauchplus2
07-13-2008, 03:51 PM
I live in bucks county and i'm not at home with my peco bills but yes I pay $280 to almost $300 in August & September for air conditioning and the same for January, February, and March. So my total utilities for electric and oil payments is practically $600 a month.

beenthere
07-13-2008, 07:19 PM
I'd have to use almost 3,000 KWH to get a bill that high.

machery
07-13-2008, 09:44 PM
In our area of PA we get a BIG BREAK on electric from PECO 6 cents above 600KW 8 months out of the year.We install Heat pumps on almost every LP and oil heater we see.

Yes.....keep the oil furnace, but add the heat pump and set the outside stat for 28 degrees.

MONUMENT SPECLT
07-13-2008, 10:17 PM
Hello.
Here is a very interesting link to an all climate heat pump. I looked into handling these at one point. They're potentially very cost effective with discounted electricity, although they're a little pricey. The offerings are limited to 3 and 4 ton units. Technical data is available on the site as well. As the technology improves, hopefully the price will start to drop to the point where they are an option for many more installations. Here in upstate NY electricity is 17-18 cents per KW and these units just about break even. There is a contact tab to get further information.

www.gotohallowell.com

Good luck with your project.
Greg

Jack2007
07-13-2008, 10:23 PM
In our area of PA we get a BIG BREAK on electric from PECO 6 cents above 600KW 8 months out of the year.We install Heat pumps on almost every LP and oil heater we see.
Yeah, Peco is great :eek:

BTW, Thanks Guru for the referral. Got three estimates and am going with the referral. Very knowledgeable and very thorough.
.

rauchplus2
07-14-2008, 08:50 AM
If the professionals don't mind I would like to post my quotes as they come for your imputs/advice since you guys are the pros.

First quote:
Trane XL16i stage two heat pump(4TWX6048) - I asked about the 19i and was told there are problems with them
Trane variable speed air handler(4TEE3D49)
seer rating of 15.50 and a HSPF of 9.10
-he did not take a calc or test anything, measured a few pieces of duct work connected the to furnace
He also suggested and priced turning the system into two zone for 1st & 2nd floor. Is that necessary as its about an additional 20%?

I forgot to mention before that our house is about 27 yrs old.

beenthere
07-14-2008, 08:57 AM
The 16i, is a poor choice for a heat pump in PA.
The 15i is a better choice. Its a single stage, but has better BTU performance then the 16i.

The 19i's defrost problems are suppose to be fixed. And is a beeter choice for a HP in PA also.

If your contractor claims other wise about the 16i, have him should you the BTU putput for it and the 15i and 19i at 17°F.

gary_g
07-14-2008, 09:02 AM
Trane XL16i stage two heat pump(4TWX6048) - ......
Trane variable speed air handler(4TEE3D49)
seer rating of 15.50 and a HSPF of 9.10


American Refrigeration Institute (ARI) #1236573.
47,500 btu cooling, 11.2 EER, 15.5 SEER, 43,000 btu heating at 47F, 9.1 HSPF, 27,600 btu heating at 17F.

The heating btu's are week for a 4 ton (5000 less than a full 48,000 btu at the rated 47F). The EER is poor for such a high end unit (12 is good).
Just so you know.

www.ARIdirectory.org.

Good luck.

beenthere
07-14-2008, 09:12 AM
And why didn't you post for a 15, and a 19i.

Slacker. :)

gary_g
07-14-2008, 09:35 AM
And why didn't you post for a 15, and a 19i.

Slacker. :)

:D

15i with same (4TEE3D49) air handler:
ARI# 1385061.
47,500 btu cooling, 12 EER, 14.5 SEER, 49,500 btu heating at 47F, 9 HSPF, 30,800 btu heating at 17F.

These numbers are outstanding. Heating btu's at 47F are 1500 more than a full 4 tons, and 6500 more btu than the 16i. Heating btu's at 17F are also much better (3000 btu more).

19i with 2TEE3D49 air handler:
ARI# 1481694.
47,000 btu cooling, 11 EER, 16.5 SEER, 44,000 btu heating at 47F, 8.5 HSPF, 24,800 btu heating at 17F.

Not great numbers for such a hi-tech system.

beenthere
07-14-2008, 09:43 AM
19i needs to be matched to a better indoor coil.

Don't confuse high tech. With high ouput.

gary_g
07-14-2008, 10:04 AM
19i needs to be matched to a better indoor coil.

Don't confuse high tech. With high ouput.

All matching Trane 19i heat pump air handlers listed as active on ARI have relatively poor system performance numbers.

Trane should have better performance numbers for their top-of-the-line 19i heat pump.

You shouldn't have to find a better 3rd party coil.

I didn't check to see if there are better performance numbers when using a furnace.

Take care.

beenthere
07-14-2008, 10:13 AM
Top of the line Luxury car. Doesn't get the highest MPG, does it. It just has a lot of conviences, and comforts.
Same with top of the line HVAC equipment.

The 19i can out perform the 16i.(not hard to do)

heatpumpguru
07-14-2008, 06:08 PM
If you zone I would recommend the 2 stage since you can run the equipment at 2 tons mOST of the time(I did that with my home)it also keeps the back-up off if you go ALL electric.you may still wish to keep the oil as back up,but you cannot go 2 stage or you may have some height issues with the Trane coils.Shot me an e-mail and I have a GREAT guy up your way.JC

Jack2007
07-14-2008, 08:55 PM
American Refrigeration Institute (ARI) #1236573.
47,500 btu cooling, 11.2 EER, 15.5 SEER, 43,000 btu heating at 47F, 9.1 HSPF, 27,600 btu heating at 17F.

The heating btu's are week for a 4 ton (5000 less than a full 48,000 btu at the rated 47F). The EER is poor for such a high end unit (12 is good).
Just so you know.

www.ARIdirectory.org.

Good luck.
gary, I can not seem to figure out how to get the info from ARI.
If you have a couple extra minutes could you do one for me?

Carrier
25HNA648A Heat Pump
CNPVP4824ATA Coil
58VMR120-1-20 Oil Furnace, Variable Speed

Thanks.