No Dash Heat Problem Solved

Scott & Heather · May 22, 2016, 07:52:58 AM

Hey Dave in our MCI nine we had a 30,000 BTU furnace for a short while and that used to roast us completely out of the coach. Even on the coldest Michigan winters. But the new coach is insulated even better I do not think we will need anything more than 40,000 BTU. But the RV propane furnaces are horrifically inefficient. So never going there again

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Oonrahnjay · May 22, 2016, 08:01:41 AM

Quote from: sledhead on May 22, 2016, 06:46:57 AM... in todays world I think a high efficient propane house furnace is the way to go . but for now I will stay with the aqua -hot system that is there now

dave

From what I've seen of modern house furnaces (efficiency, etc.) that sounds like a good plan. Do you have a website to illustrate the kind, model, features etc. of ones that you're thinking about? Thanks.

eagle19952 · May 22, 2016, 08:17:05 AM

Quote from: Oonrahnjay on May 22, 2016, 08:01:41 AM
From what I've seen of modern house furnaces (efficiency, etc.) that sounds like a good plan. Do you have a website to illustrate the kind, model, features etc. of ones that you're thinking about? Thanks.

anything that would come standard in an atypical 14 wide "mobile" home.
trailer trash ... you know, those people two steps above bus nuts in the social order...

Oonrahnjay · May 22, 2016, 08:38:59 AM

Quote from: eagle19952 on May 22, 2016, 08:17:05 AManything that would come standard in an atypical 14 wide "mobile" home.
trailer trash ... you know, those people two steps above bus nuts in the social order...

"Two steps"?? Yeah, don't we wish - not even throwing in the factor of "dubbah-waahds" around here.

Oonrahnjay · May 22, 2016, 08:57:50 AM

Quote from: eagle19952 on May 22, 2016, 08:17:05 AManything that would come standard in an atypical 14 wide "mobile" home.

Here's just one, from Suburban --

http://www.airxcel.com/suburban/products/furnaces/sfq-series

I like this part:

"SF-FQ Models are designed for interior serviceability with a front (inside) gas connection and only a small vent terminal on the coach exterior, permitting installation up to 9 inches from the wall. Since no exterior access door is required, the SF-F is aesthetically appealing and a more economical installation choice.

All SF Models also feature quiet, multi-ported stainless steel burners, sealed forced-draft combustion, automatic direct spark ignition and low amp draw. Cut-out size: 7-1/2" H x 17" W x 20" D."

The overall unit size is about the size of an ordinary drawer. Power draw is 9 Amp @ 12v.

eagle19952 · May 22, 2016, 09:10:38 AM

more like this...

http://www.homedepot.com/p/Kelvinator-80-AFUE-45-000-BTU-Upflow-Horizontal-Residential-Natural-Gas-Furnace-KG7SA045C-23A/206511887

sledhead · May 22, 2016, 01:45:36 PM

like this
https://www.alpinehomeair.com/viewproduct.cfm?productID=453069463

they have a 40,000 btu unit for a little less money but I think it is the same size ( w x h x d )

should fit in a bay with the duct work just under the floor

dave

Oonrahnjay · May 22, 2016, 03:12:05 PM

Quote from: sledhead on May 22, 2016, 01:45:36 PM
like this
https://www.alpinehomeair.com/viewproduct.cfm?productID=453069463

they have a 40,000 btu unit for a little less money but I think it is the same size ( w x h x d )

should fit in a bay with the duct work just under the floor

dave

Oh, yeah, bays ... yeah, I've heard that some of y'all have those.

eagle19952 · May 22, 2016, 05:07:05 PM

Quote from: Oonrahnjay on May 22, 2016, 03:12:05 PM
Oh, yeah, bays ... yeah, I've heard that some of y'all have those.

mine is in a closet...above bays, the radius of my curb side roof (bare metal)...forms 180 degrees of my duct..the air handler for my AC also...

Oonrahnjay · May 22, 2016, 05:40:19 PM

Quote from: eagle19952 on May 22, 2016, 05:07:05 PMmine is in a closet...above bays, the radius of my curb side roof (bare metal)...forms 180 degrees of my duct..the air handler for my AC also...

Yeah, I had seen a couple of them that said that the were designed that they could be coupled with (sharing thermostat, ducting, etc.) with AC. For the price and performance, they're pretty impressive. How many BTU's is yours?

eagle19952 · May 22, 2016, 06:06:12 PM

Quote from: Oonrahnjay on May 22, 2016, 05:40:19 PM
Yeah, I had seen a couple of them that said that the were designed that they could be coupled with (sharing thermostat, ducting, etc.) with AC. For the price and performance, they're pretty impressive. How many BTU's is yours?

i am all electric, furnace is 12kw, 40k BTU, my AC is 3T. 220v.
But the space and "principles" are the same

i prefer to burn diesel than search for propane during a power outage

The rest of my circuits are shared on a pass thru inverter. (except my 110v 20 gallon hot water heater)

my system was designed for use in high rise apartment buildings. installed new in 1990.
was adequate for George Strait.
see First Co Dallas TX.

Scott & Heather · May 23, 2016, 07:28:41 PM

Don, your setup intrigues me. What size is your genset? And do you even have a battery bank?

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Scott & Heather · May 23, 2016, 07:30:02 PM

And what do you do when parked on the pole? 50amp service is only 12,000 watts so when your furnace is full bore how do you run other things?

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eagle19952 · May 23, 2016, 11:19:30 PM

Quote from: Scott Bennett on May 23, 2016, 07:30:02 PM
And what do you do when parked on the pole? 50amp service is only 12,000 watts so when your furnace is full bore how do you run other things?

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My pass thru.share inverter 3kw Xantrex Freedom Marine services a sub panel for all circuits except AC 220v Heat 220v and hot water 110v
the gen is 12 KW. I very seldom use it. the inverter has two echo chargers. one serves the grp 31 Gen start battery...my ooops battery. but i still have jumper cables and a vehicle for major oops

which i have never needed.
with a Todd auto transfer switch.
80% of all interior lites are 12v Thinlites fluoresent, (with the onboard inverter boards)
My batteries are combined start house. 2 8D AGM. ( I could have more) my needs are refrigeration basically overnite. i must run my gen 2-3 hours daily in National parks to keep my ice cream the way I like it.
I am not a long term boon docker but have spent 1-2 weeks at the Grand Canyon, Death Valley etc. without a pole. BUT I do places like DV in October and GC in May...
180 amp engine alternator, and 130 amp Inverter DC charger. essentially my 12v needs are serviced by the batteries. all of the wall outlets TV's refer,microwave Sealand stove top are either inverter or pass thru...I have never looked at my remote and seen less that 5amps invert.
Sean the yacht guy did a write up here ( I had a link...) where he said if he had it to do over he'd have gone with a single battery bank.
Mine has been in operation since the mid 90's and I have owned it and full timed (since 2003) about 50% stationary and 50% migratory wanderer. in that time frame the OEM batteries (wets) were replaced 2007 (wets) and in 2012 I put in the AGM's

Tomorrow I can pencil out a sketch, if you are interested.

eagle19952 · May 23, 2016, 11:33:59 PM

PS ok I fibbed exagerated, uhm took a wild guess...but i did just now actually dig out the data...

MY heat is truly rated 10.5 KW at 240v AC
and 7.5 KW at 208v. so depending on the pole voltage, it is a true # inside that rating. i believe i am currently on 220v +/- 2v
http://www.rapidtables.com/convert/power/kW_to_BTU.htm

but, i did travel from Alaska to Arizona in October thru the Yukon and had no uncomfortable minutes. sub freezing is easy.
further. my inverter has been fed 110v from some source at least 95% of the last 10 years. i had to replace my original inverter in 2007, the old trace remote was wired (comm/control) with ribbon cable and a mouse chewed on it and the diodes in the inverter succumbed a horrible demise...hence that inverter died. i do carry a spare inverter. a 2kw trace old school.

should have left my cat home...