Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-10-2014, 05:05 PM   #15
Wise Elder
 
Jammer's Avatar
 
2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
Join Date: Dec 2009
Posts: 4,119
There are alternatives.

http://www.airforums.com/forums/f427...ble-64289.html

1500w/1800w electric heat will only work when the weather is mild, down to about 55 degrees, I find. Heat distribution is much less of a problem under these conditions than in extreme cold, so the use of the ductwork doesn't provide as great an advantage as it does for the furnace.

I have been happy with my setup although in practice I find it has limited applicability. We don't go through that much propane when the weather is mild enough for the electric heat to be a viable alternative.
__________________

__________________
To learn to see below the surface, you must adjust your altitude
Jammer is offline   Reply With Quote
Old 12-10-2014, 06:44 PM   #16
Patriotic
 
Chuck's Avatar

 
1973 23' Safari
North of Boston , Massachusetts
Join Date: May 2002
Posts: 4,533
Images: 260
Quote:
Originally Posted by Jammer View Post
1500w/1800w electric heat will only work when the weather is mild, down to about 55 degrees, I find.
Really? how so? just not enough wattage? At 55F, I wouldn't even turn on the furnace. not cold enough to need any heat.
I've used a cheap cube heater down into the upper 20's; it was able to maintain the temp. Of course, my trailer is a lot smaller than yours, which I'm sure is a major factor.
I'd like to have an electric "furnace"...IMO, the propane ones are really "electric", because they use so much electricity to run the fan. You can't really use it unless you're on a full hookup, anyway, so why bother?
(unless, of course, you have a gi-normous battery array and 400watts of solar).
__________________

__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
Chuck is offline   Reply With Quote
Old 12-14-2014, 05:03 PM   #17
2 Rivet Member
 
dmcgaugh's Avatar
 
Seattle , Washington
Join Date: Aug 2014
Posts: 72
Quote:
Originally Posted by mefly2 View Post
Please post more info / link and advise if you also offer the required and matching cabinet extension...total cost?

You can find out everything you need at rvcomfortsystems.com. The cabinet was custom made by a local sheet metal shop here in Seattle. I had it made up out of 0.080 aluminum sheet reinforced with 1/2" plywood so that it wouldn't been if someone kicked it. I reused the return air vents and just stacked them vertically. I could probably dig up the measurements used for the cabinet, but it isn't something that is orderable. Note that many RV installs don't require a custom cabinet at all. Because if the cabinet, it was a fairly involved process.
__________________
dmcgaugh is offline   Reply With Quote
Old 12-14-2014, 05:13 PM   #18
2 Rivet Member
 
dmcgaugh's Avatar
 
Seattle , Washington
Join Date: Aug 2014
Posts: 72
Quote:
Originally Posted by Jammer View Post
1500w/1800w electric heat will only work when the weather is mild, down to about 55 degrees, I find. Heat distribution is much less of a problem under these conditions than in extreme cold, so the use of the ductwork doesn't provide as great an advantage as it does for the furnace

A gas furnace has a flue that exhaust 40% of input. Which means that 25,000 BTU furnace puts out 15,000 BTUs and then you have a 90 sec pre purge and a 60 sec post purge. This means every heat cycle has 2 1/2 minutes with no fire so, true output is around 11,000 btu at the register. The 1800W CheapHeat has 6150 btu at the register.

At 1800W, it will easily go down to 30 degrees maybe as low at 25 at 70 inside. Figure it 40 to 45 degrees above outdoor temp on your trailer.
__________________
dmcgaugh is offline   Reply With Quote
Old 12-14-2014, 06:48 PM   #19
Rivet Master
 
Pahaska's Avatar
 
2014 Interstate Ext. Coach
Hays County , Texas
Join Date: Jun 2002
Posts: 5,822
Images: 3
Quote:
Originally Posted by Jammer View Post
1500w/1800w electric heat will only work when the weather is mild, down to about 55 degrees, I find.
You must have no insulation. A small ceramic heater will keep my Classic 28 comfortable down to about freezing, once the trailer is no longer cold-soaked..
__________________

__________________
John W. Irwin
2014.5 Touring Coach, "Sabre-Dog IV"
WBCCI #9632
Pahaska is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
CheapHeat System Safari-Rick Furnaces, Heaters, Fireplaces & Air Conditioning 0 03-03-2013 01:32 AM
Fan-Tastic fan install Gordon Watt Roof Vents, Skylights & Fans 28 08-15-2011 12:41 PM
Black Water Tank Flush-Install JaceBeck Waste Systems, Tanks & Totes 0 04-30-2002 12:54 PM
Where should I install new batteries? Andy R Electrical - Systems, Generators, Batteries & Solar 3 03-31-2002 11:01 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:29 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.