Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Search this Thread Display Modes
Old 09-14-2013, 09:11 PM   #1
Join Date: Jan 2010
Location: AL
Posts: 157
Rewards Points: 154

Enough power for Heat Pump in garage renovation?

We are planning to have our attached garage converted to living space. It is 450 square feet. It will be insulated floor, ceiling and all walls. We live in northern AL.

Our preference is for a conventional unit with the indoor coil and blower mounted in the attic over the garage, feeding conditioned air through ducts to vents in the ceiling.

We have 200 amp service and a dual fuel system (heat pump and gas furnace) in the house proper. At the electrical service panel, there is only one unused 250 v 'slot'. It has 30 amp fuses in it (picture attached).

Is that enough 'juice' to run a second heat pump dedicated to just the renovated garage?

Attached Thumbnails
Enough power for Heat Pump in garage renovation?-5.jpg  

Last edited by John_W; 09-14-2013 at 09:16 PM.
John_W is online now   Reply With Quote
Old 09-15-2013, 02:17 AM   #2
Join Date: Mar 2007
Location: Eighty Four, Pa.15330
Posts: 1,348
Rewards Points: 694

Enough power for Heat Pump in garage renovation?

Yeow! Fuses? Look into a mini-split heat pump.

bobelectric is offline   Reply With Quote
Old 09-15-2013, 07:47 AM   #3
PoleCat's Avatar
Join Date: Sep 2009
Location: Dayton, Ohio
Posts: 1,524
Rewards Points: 730

Enough power for Heat Pump in garage renovation?

It is plenty for a Zoneline unit. You know, like in a motel room.
"Ask me anything. If I don't know the answer I'll make something up."
PoleCat is offline   Reply With Quote
Old 09-15-2013, 09:50 AM   #4
Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,823
Rewards Points: 284

Enough power for Heat Pump in garage renovation?

you can run a 2 ton ac off 30 amp fuses/breakers in a house and a heat pump is no different. won't need 2 tons and yeah a 1.5 ton will be too big for that space also. a smaller mini split heat pump may be required. the smallest conventional unit is 1.5 tons and can do a space twice that size. an oversized unit will short cycle badly and get damaged. the Fujitsu mini splits are very quiet indoors. they make one that works down to -15 deg F. after that you would need some baseboard heaters. LG and Mitsubishi are major players and good also.

"Cut it twice and it is still too short".

Last edited by yuri; 09-15-2013 at 10:24 AM.
yuri is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Junction box feeding power to garage from house gmbojanowski23 Electrical 4 10-02-2012 11:20 AM
Craftsman 1/2hp Garage Door Opener No Power DIYfer General DIY Discussions 4 09-11-2011 10:02 AM
Power 120V Pump from a 240V circuit RoberTX Electrical 26 07-06-2011 12:43 AM
Supply power to a garage in Ontario Canada StarGehzer Electrical 7 10-15-2010 01:47 PM
Sump Pump Questions henlij Plumbing 19 08-12-2009 08:50 PM

Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.