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-   -   Relocate furnace (replacement) to attic? (http://www.diychatroom.com/f17/relocate-furnace-replacement-attic-15352/)

AppleMac*Fit 01-08-2008 04:52 PM

Relocate furnace (replacement) to attic?
 
Well, I suppose it is a heat pump - I have an A/C condenser outside - both of which are at the end of their service life.

I am looking to replace the two but would like to use the closet they're currently in for something else. I would most likely desire to place the new heat pump directly above the closet it is currently in.

Quick information
1-story ranch house, 3-bed, 1 bath, 1012 square-feet
The closet it is in is open to the attic
The intake register is currently on the lower portion of the closet (elevated heat pump on a platform).
The heat pump is gas-fired.

My Questions:
If I cut a hole in the ceiling for an intake register, is it possible to have the new heat pump installed in the attic?
How much would it increase the costs versus just installing in closet?
Any recommended brands for replacement equipment?
Any recommended contractors in the Charleston, SC area?


Thanks a lot for your help! :thumbup: I'm an electrician, but HVAC and plumbing are two subjects that I know little about.

redline 01-09-2008 08:51 AM

Is there access to the attic?

Is the opening large enough to get the equipment up thre?

bigMikeB 01-09-2008 06:23 PM

Doesn't look like you know heat pumps at all either. If it's gas, it's a furnace. If the attic is large enough to get around in, move it there.

AppleMac*Fit 01-10-2008 03:28 PM

Quote:

Originally Posted by bigMikeB (Post 87052)
Doesn't look like you know heat pumps at all either. If it's gas, it's a furnace.

Thus - my admitted lack of knowledge; had I known, I would not have asked. :thumbsup:

Quote:

Originally Posted by bigMikeB (Post 87052)
If the attic is large enough to get around in, move it there.

Okay - Thanks.

bigMikeB 01-10-2008 06:58 PM

As an electrician, don't you wire furnaces and heat pumps?

AppleMac*Fit 01-10-2008 09:45 PM

Quote:

Originally Posted by bigMikeB (Post 87325)
As an electrician, don't you wire furnaces and heat pumps?

Nope. HVAC people do that. :laughing: I'll get the power to a junction box next to the HVAC unit if need be, or provide proper power to the unit itself. But an electrician doesn't have to know the intricacies of how a piece of HVAC equipment runs in order to provide proper power to it.

Although I know the NEC very well, as of late, I'm doing industrial marine electrical work.

bigMikeB 01-11-2008 05:26 PM

Quote:

Originally Posted by AppleMac*Fit (Post 87376)
Nope. HVAC people do that. :laughing: I'll get the power to a junction box next to the HVAC unit if need be, or provide proper power to the unit itself. But an electrician doesn't have to know the intricacies of how a piece of HVAC equipment runs in order to provide proper power to it.

Although I know the NEC very well, as of late, I'm doing industrial marine electrical work.

That's interesting, in the rest of the world a furnace gets a dedicated 15amp 120v circuit and a heat pump airhandler usually gets a two pole disconnect with at least 240v 40amp breaker feeding it for electric heat. I wouldn't think the two could be easily confused.

AppleMac*Fit 01-12-2008 10:30 PM

bigMikeB -

In case you didn't read my previous posts - I don't wire residential HVAC stuff - I do industrial marine electrical work.

Additionally, you did not answer any of my questions (there were 4 of them). Why do you keep posting in this thread, if you are not going to help me out by answering any of my questions?

I forgive you for inept social skills.

AppleMac*Fit 01-12-2008 10:33 PM

Quote:

Originally Posted by bigMikeB (Post 87623)
That's interesting, in the rest of the world a furnace gets a dedicated 15amp 120v circuit and a heat pump airhandler usually gets a two pole disconnect with at least 240v 40amp breaker feeding it for electric heat. I wouldn't think the two could be easily confused.

FYI -

A residential 2-pole breaker is not 240 volts... it's 208 volts :no: (take a Fluke meter to it). Although some folks lazily refer to it as 220 volts.

bigMikeB 01-13-2008 11:20 AM

Quote:

Originally Posted by AppleMac*Fit (Post 87926)
FYI -

A residential 2-pole breaker is not 240 volts... it's 208 volts :no: (take a Fluke meter to it). Although some folks lazily refer to it as 220 volts.

Well, now we know your not an electrician. 208 is a three phase voltage, not found in any houses I have ever seen. Two poles of single phase (residential service) is 120 per leg or 240. And you own a Fluke, hmm:laughing:

AppleMac*Fit 01-13-2008 07:11 PM

Quote:

Originally Posted by bigMikeB (Post 88027)
Well, now we know your not an electrician. 208 is a three phase voltage, not found in any houses I have ever seen. Two poles of single phase (residential service) is 120 per leg or 240. And you own a Fluke, hmm:laughing:

I own several fluke volt meters - and an oscilloscope.

Measure the voltages. The voltages do not add directly because they are 60-degrees out of phase. Sure - each is about 120 volts. But, measure the voltage across the two phases.

Here's what you'll find:
phase 1 to ground - about 120 volts
phase 2 to ground - about 120 volts
phase 1 to phase 2 - about 208 volts.

BTW - I'm fairly certain I'm an electrician. I have three other electricians who report to me.

Finally - why not answer my initial questions about moving the furnace/whatever it is to the attic?


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