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10-22-2024, 05:41 AM
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#1
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Senior Member
Join Date: Mar 2024
Posts: 115
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Heater in Open Road
The heat in our 2016 Open Road 32SA works great. This is a question about the system itself. In the living area, the thermostat says "Cool-Off-Gas Heat-Electric Heat". We mostly travel in summer, and stay in "formal" RV parks, so we're always on electricity. We've only needed heat the last couple of weeks and have only used electric heat via the thermostat in the living area (in fact, we just gave away our portable electric heater to a fellow traveler). I assume the gas heat would work as well, on propane, if needed.
The question is -- the bedroom thermostat only says "Cool-Off-Heat". So what does the bedroom heater use/do? Is it electric or gas?
Just curious.
__________________
2016 Thor Four Winds 28Z
2016 Tiffin Allegro Open Road 32SA
Jeep Wrangler Sport
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10-22-2024, 06:40 AM
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#2
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Senior Member
Newmar Owners Club Tiffin Owners Club Entegra Owners Club
Join Date: Feb 2017
Location: Fulltiming Since 2011
Posts: 1,534
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Hi - Sounds like your front air conditioner is a heat pump and the rear is not. That accounts for the different thermostats. The rear would use the propane furnace for heat which also would provide heat for the basement. Up front it depends on the outside temperature as to which you would use.
Tom
__________________
Tom and Annie & Java
2025 Allegro Bus 40IP
RVer's since 1985, Fulltimers since 2011
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10-22-2024, 07:20 AM
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#3
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Member
Official iRV2 Sponsor
Tiffin Owners Club
Join Date: Aug 2024
Posts: 187
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Quote:
Originally Posted by sf7307
The heat in our 2016 Open Road 32SA works great. This is a question about the system itself. In the living area, the thermostat says "Cool-Off-Gas Heat-Electric Heat". We mostly travel in summer, and stay in "formal" RV parks, so we're always on electricity. We've only needed heat the last couple of weeks and have only used electric heat via the thermostat in the living area (in fact, we just gave away our portable electric heater to a fellow traveler). I assume the gas heat would work as well, on propane, if needed.
The question is -- the bedroom thermostat only says "Cool-Off-Heat". So what does the bedroom heater use/do? Is it electric or gas?
Just curious.
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I agree with Tom's response. The primary heat source for the rear zone is indeed the furnace. However, you may still be able to draw warm air from the front heat pump due to the way our ducting is designed. By closing the supply vents in the front and mid zones, you should notice warm air flowing into the bedroom. Keep in mind, though, that the airflow may not be as strong as it is in the front zone because the heat pump is located toward the front of the coach.
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10-22-2024, 07:24 AM
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#4
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Senior Member
Join Date: Dec 2014
Location: Georgia
Posts: 1,748
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The rear unit is AC only, even the thermostat has no impact on heating.
The front thermostat controls front unit AC / heat pump, or activates the gas furnace. The gas furnace also heats your wet bay, the heat pump does not.
And as suggested above, if you want more heat to the rear using the front unit heat pump, close off some of the ceiling vents in the front of the unit so more air is directed to the bedroom.
The heat pump is not effective (ie, pretty worthless ) when you start getting down to 40 degrees or so.
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D&S
2024 inTech Sol Dusk
2015 Tiffin Allegro 31SA, 24k (2015-2020)
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10-22-2024, 09:12 AM
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#5
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 2,046
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Quote:
Originally Posted by sf7307
The heat in our 2016 Open Road 32SA works great. This is a question about the system itself. In the living area, the thermostat says "Cool-Off-Gas Heat-Electric Heat". We mostly travel in summer, and stay in "formal" RV parks, so we're always on electricity. We've only needed heat the last couple of weeks and have only used electric heat via the thermostat in the living area (in fact, we just gave away our portable electric heater to a fellow traveler). I assume the gas heat would work as well, on propane, if needed.
The question is -- the bedroom thermostat only says "Cool-Off-Heat". So what does the bedroom heater use/do? Is it electric or gas?
Just curious.
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In the 2016 Open Roads, there was no Heat Pump capability available for the (smaller sized) rear A/C unit. Apparently, also, there wasn't an OFF/AC only thermostat either. So the HEAT setting on the bedroom thermostat does control anything.
As for the front Heat Pump, we use it exclusively in colder weather all the way down to 40 degrees, but the propane furnace below that. Saves a lot of propane that way until you really need it.
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10-22-2024, 09:30 AM
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#6
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Senior Member
Join Date: Sep 2019
Location: Colorado Springs, CO
Posts: 1,212
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The rear thermostat would either use gas or do nothing.
__________________
Don & Vicki
2017 Tiffin Allegro Open Road 36LA, F53 chassis, V10
2020 Ford Escape Hybrid SE Sport AWD, RVibrake3, Blue Ox
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10-22-2024, 04:31 PM
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#7
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 2,046
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Quote:
Originally Posted by Mike8253
In the 2016 Open Roads, there was no Heat Pump capability available for the (smaller sized) rear A/C unit. Apparently, also, there wasn't an OFF/AC only thermostat either. So the HEAT setting on the bedroom thermostat does NOT control anything.
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Apologies re: my previous reply. I had proofed it, but not well enough, apparently. Ther rear thermostat controls the rear A/C unit only, and does not have any functionality with regard to either the propane furnace or front air conditioner/heat pump.
__________________
Mike and Cindy
2016 Tiffin Allegro Open Road 34PA
2018 Chevy Malibu
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10-22-2024, 04:52 PM
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#8
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 23,392
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Quote:
Originally Posted by Mike8253
Apologies re: my previous reply. I had proofed it, but not well enough, apparently. Ther rear thermostat controls the rear A/C unit only, and does not have any functionality with regard to either the propane furnace or front air conditioner/heat pump.
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So there is no rear furnace in your Open Road? Our Allegro RED had a rear A/C but the thermostat did control a furnace which also delivered some heat to the wet bay.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
White '24 Jeep JLU Wrangler Willys
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10-23-2024, 06:13 AM
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#9
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Senior Member
Join Date: Dec 2014
Location: Georgia
Posts: 1,748
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Quote:
Originally Posted by Lt Dan
So there is no rear furnace in your Open Road? Our Allegro RED had a rear A/C but the thermostat did control a furnace which also delivered some heat to the wet bay.
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In the 31/32 SA there is one gas furnace, controlled by the “front” thermostat and related sensors, which also controls the front AC/heat pump. The heat pump is NOT ducted to the wet bay.
As noted, the rear thermostat only controls the rear AC, a heat pump in the rear was not a standard option, so the heat setting on that thermostat is irrelevant.
The one gas furnace is ducted to the wet bay. There is no thermistor in the wet bay unfortunately, nor do I think the wet by is adequately heated on both sides, which probably has as much to do with the ductwork getting squished as anything. We spent about a month at the end of the year in the FL panhandle each of the 5 years we had our 31SA, and we dealt with overnight temps in the 20s at times.
I would stuff insulation into the fresh tank drain outlet, and wrap it in pipe insulation. I also had a 5 watt heater I would place on a couple pieces of tile to keep it off the plastic floor on the wet bay panel side that I would use if temps were going to be in the 20s most of the night. It would pass heat over to the tank / water pump side to some degree as well (I believe they finally moved the water pump at some point to get it into the control panel side). I didn’t run it while we were sleeping, but ran it a few hours beforehand to make sure the bays were good and warm and so that the heat from the furnace would be adequate overnight.
I am not sure how Mike’s 34PA is set up, but I think all the “more recent model” Tiffin gassers are the same….
Regards
__________________
D&S
2024 inTech Sol Dusk
2015 Tiffin Allegro 31SA, 24k (2015-2020)
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10-23-2024, 06:52 AM
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#10
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 2,046
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Quote:
Originally Posted by Lt Dan
So there is no rear furnace in your Open Road? Our Allegro RED had a rear A/C but the thermostat did control a furnace which also delivered some heat to the wet bay.
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On the 2016 model year, there was no rear furnace, nor heating capability available in the rear a/c unit. That changed in subsequent model years (not sure when). On our 34PA, we'll use the front Heat Pump to warm the rear bedroom at night with temps down to 40 degrees. Just returned from a 6-wk trip in Canada with stops in the Rockies and as far north as Edmonton, and had no issues with nighttime comfort. But, on newer models, as said, that point is mute, as heating capability was added to the rear (trickle down from the diesel big brothers).
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10-30-2024, 10:51 PM
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#11
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Junior Member
Join Date: Jun 2021
Posts: 4
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Heater in open rosd
I have a similar set up.
You have ac, propane heat and a heat pump in the front which is why the thermostat reads as it does. The first detente is AC then off then propane heat then heat pump.
However in the BR you only have ac and propane heat.
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