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Topic: Furnace Thermostats (Read 968 times) previous topic - next topic

Furnace Thermostats

Our 95 has gas furnaces and those funky accompanying thermostats. I replaced them today. Simple on/off and temp select. Large LED display of ambient temp and selected temp. For anyone interested they are LuxPro ProSpec Series, PSD010B and run about $26 from Plumbers Outpost.
jor

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Re: Furnace Thermostats

Reply #1 –
I replaced ours also a couple of years ago. If the new thermostats have a battery, replace it going into winter, especially if you count on the rear furnace to keep the lower bays warm.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Furnace Thermostats

Reply #2 –
Has anyone ever tried using a mercury bulb thermostat? I wonder if movement of the coach's suspension, even when parked, would cause the mercury bulb to tip back and forth turning the furnace on and off? I noticed Hydro Flame uses those cheapo thermostats that just have a breaker point on a bimetal coil, which seems out of place in an expensive luxury coach. I'm wondering if they tried using a mercury bulb thermostat but the suspension movement interfered with its function? I wanted to install the old fashioned round Honeywell thermostat with a mercury bulb in it. Those are the best thermostats ever made and they don't need batteries... and they're cool looking.
Scott Cook
1991 U300 36' 6V92TA
Old Town Penobscot 16
1984 Honda VF1100C (V65 Magna)

Re: Furnace Thermostats

Reply #3 –
The EPA has made mercury thermostats illegal
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Furnace Thermostats

Reply #4 –
There are a bunch of good used ones that were replaced with digital thermostats.
Scott Cook
1991 U300 36' 6V92TA
Old Town Penobscot 16
1984 Honda VF1100C (V65 Magna)

Re: Furnace Thermostats

Reply #5 –
Changed out the thermostat in the bath today with the LuxPro PSD010B. Easy swap out, but during my ops check I noticed the display had gone blank. Removed the cover and found one of the AA batteries was very hot. Everything on the board looked good so I swapped out the batteries and everything seems to be working fine. I am assuming the battery had some kind of internal short. Is that possible?
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: Furnace Thermostats

Reply #6 –
If you're counting on the rear furnace keeping the lower bay from freezing and you have a digital thermostat, make sure to change the batteries before cold weather. Wonder how I know that.

Only time I have had a AA or AAA alkaline get hot was when I used a wall charger. One got really hot.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Furnace Thermostats

Reply #7 –
Quote from: Pierce & Gaylie Stewart –
If you're counting on the rear furnace keeping the lower bay from freezing and you have a digital thermostat, make sure to change the batteries before cold weather. Wonder how I know that.

Only time I have had a AA or AAA alkaline get hot was when I used a wall charger. One got really hot.

Pierce

His 02 would have aqua hot and the bath third zone heats the water tank bays alternately.

Thermostat in the bath works that fan and the hot circuit.  The lower thermostat works the same hot circuit but the lower fans if I understand how this works.

Fourth loop is the engine circuit. 
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Furnace Thermostats

Reply #8 –
Hmmm, I've been thinking about our thermostats lately, too. Both are the original ones, and neither is in a particularly convenient place. The one in the bedroom is mounted pretty low and right over a heat vent. The front one is in the kitchen, up high on the wall. Neither is easy to see with trifocals. Maybe I ought to look for a pair of digital ones with nice, big numbers.

Re: Furnace Thermostats

Reply #9 –
Quote from: kb0zke –
Hmmm, I've been thinking about our thermostats lately, too. Both are the original ones, and neither is in a particularly convenient place. The one in the bedroom is mounted pretty low and right over a heat vent. The front one is in the kitchen, up high on the wall. Neither is easy to see with trifocals. Maybe I ought to look for a pair of digital ones with nice, big numbers.

I always thought that the bedroom thermostats location caused extra cycling.

But the dryer air from the propane systems seems to not hold the heat as well as the moister air from the aqua hot system.

Adding humidity I thought might help.  And relocating the thermostat?

Bob
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Furnace Thermostats

Reply #10 –
 Looking at the posts on Digital ones made me order 2 for the 240 last night. Will have them next week and replace old ones. If nothing else they will look good!!
John H
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Furnace Thermostats

Reply #11 –
JohnH, I suggest you take Pierce's advice preemptively on your new thermostats and replace the provided batteries. My front furnace quit this morning. Of course, I ignored my wife's suggestion to replace the batteries. After all, they are almost new! New batts; warm as toast.
jor
93 225
95 300
97 270
99 320