Visit our Popular Forums

RAG · 09-30-2012, 06:51 AM

Hi Folks,

Has anyone had success replacing the original equipment Atwood analog wall thermostat with a digital one. Nothing fancy, just on/off and an LCD temperature adjustment & display.

Sure would appreciate recommendations and possible pitfalls with this change.

Best regards and safe travel to all...

Randy, Pam & 🐕

92landyacht · 09-30-2012, 07:20 AM

Haven't done it myself, but I see no reason it wouldn't work. There’s nothing particularly special about the Atwood thermostats. Just a simple ON/OFF switch and a normally open switch based on temperature.

rodsterinfl · 09-30-2012, 07:31 AM

Yes, I replaced mine with a digital model that several on this forum used. I had to hunt for it. Found it at Walmart - Hunter Just Right 4299B. It is certainly not fancy or programmable. Just makes it all digital.

idroba · 09-30-2012, 09:25 AM

As long as it has a battery in it, any digital thermostat will work fine. The battery powers the electronics and the relay which turns the furnace on. The digital ones without a battery use 24 volts AC from a home heating system to power them, and will not work with the 12 volt DC of the trailer furnace.

Keyair · 09-30-2012, 10:34 AM

I have replaced the original Furnace Thermostat with the Hunter too...
Before..

I bought both of mine off used, Ebay for under $12 each inc shipping..

Mounted and working.

Took me about 5 minutes.

Biggest issue I had was that both of my trigger wires from the furnace were the same color... but I am told it makes no difference... it just completes the circuit.

I love being able to see the ambient temperature too!

The batteries have been in a year now, without issues.
Great write-up here:
RV Digital Thermostat Upgrade | ModMyRV

KYAirstream · 09-30-2012, 08:51 PM

Does this digital thermostat have an on/off switch?

Keyair · 09-30-2012, 08:56 PM

Quote:

Originally Posted by KYAirstream

Does this digital thermostat have an on/off switch?

The "Fan" switch closest to the display is set in the middle position and its Off.

KYAirstream · 09-30-2012, 08:58 PM

Missed that. Thanks

RAG · 10-01-2012, 01:26 PM

Quote:

Originally Posted by rodsterinfl

Yes, I replaced mine with a digital model that several on this forum used. I had to hunt for it. Found it at Walmart - Hunter Just Right 4299B. It is certainly not fancy or programmable. Just makes it all digital.

Well, I picked up a Hunter today at Walmart and will do the install in a day or so. Only thing I noticed, although it looks identical to all posted photos, it carries a model #42995; don't know if that means something....

Anyway, as usual, thank you for all the input from Forum members; your ongoing help is invaluable.

Best regards and safe travel to all,

Randy, Pam & 🐕

RAG · 10-03-2012, 12:21 PM

Quote:

Originally Posted by RAG

Well, I picked up a Hunter today at Walmart and will do the install in a day or so.

Did the quick install today... works GREAT! Can't believe I waited this long to make the switch to digital.

Note to self: Try to be smarter next time.....

Best regards and safe travel to all,

Randy, Pam & 🐕

Keyair · 10-03-2012, 01:12 PM

Quote:

Originally Posted by RAG

Did the quick install today... works GREAT! Can't believe I waited this long to make the switch to digital.

Note to self: Try to be smarter next time.....

Best regards and safe travel to all,

Randy, Pam & ��

Awesome!

KYAirstream · 09-24-2013, 09:14 PM

Any issue with these starting up at temps below 32degrees? That is, if you haven't been in your trailer and it is less than 32 degrees at start up?

92landyacht · 09-24-2013, 09:18 PM

I've replaced mine since the beginning of this thread and have had NO issues in any temp.

KYAirstream · 09-24-2013, 09:28 PM

Quote:

Originally Posted by 92landyacht

I've replaced mine since the beginning of this thread and have had NO issues in any temp.

Did you use the Hunter? I think some use the Honeywell....

RAG · 09-25-2013, 04:47 AM

Quote:

Originally Posted by KYAirstream

Any issue with these starting up at temps below 32degrees? That is, if you haven't been in your trailer and it is less than 32 degrees at start up?

My Hunter has performed flawlessly for a year now, and at all temperatures. To date, it's been the best, and easiest, improvement I've made to "Christine".

Best regards and safe travel to all,

Randy, Pam & Kobi
.

92landyacht · 09-25-2013, 06:26 AM

Mine was a generic brand I purchased at Home Depot. I didn't need the programmable features and it was only about $19 each. Have worked well for over a year now. Pretty much any digital thermostat will work.

RAG · 09-25-2013, 07:06 AM

A year ago, the non-programable Hunter I purchased from Walmart, model #42995, was $17.97.

gloran · 09-25-2013, 09:07 PM

I replaced mine with the same model Hunter and noticed that the furnace didn't cycle on and off nearly as much. It was a nice improvement over the old one.

ddruker · 09-25-2013, 09:56 PM

I bought a decent Honeywell thermostat at Amazon - about $50 - that is programmable and includes an illuminated digital clock, which I was looking for as an upgrade. It very does a good job of reducing cycling at night time - it supposedly learns how fast the space heats up and cools down - so it doesn't over-run and under-run with the furnace - and it also helps save fuel by automatically shutting off completely when it's time to wake up. Using the stove to make coffee and breakfast keeps us plenty warm once we are up.