Atwood water heater 10 gal

There is a adjustable thermostat for attwood. Around $28. takes 10 minutes to install. Works great. I put one in 2003 pace arrow 2years ago

I have a 2004 Sunnybrook Titan and agree with both the high water temperature and lack of temperature control for a 10 gallon Atwood gas/electric HWH. But knowing that, water temperature can be adjusted by mixing at the sink or shower valve. Instead, my main concern is that this HWH seems to use a lot of propane when in gas mode. I thought turning it down might help, but there is no control. I suppose that using less hot water would help after the HWH shuts off, but I can see a larger, stationary propane tank in my future for home (off-grid) use to reduce trips to fill the trailer tanks. In answer to another post, I can also verify that this HWH makes a lot of noise when first turned on. But, for some reason, it is less noisy when re-heating.

JRMunn wrote:
I have a 2004 Sunnybrook Titan and agree with both the high water temperature and lack of temperature control for a 10 gallon Atwood gas/electric HWH. But knowing that, water temperature can be adjusted by mixing at the sink or shower valve. Instead, my main concern is that this HWH seems to use a lot of propane when in gas mode. I thought turning it down might help, but there is no control. I suppose that using less hot water would help after the HWH shuts off, but I can see a larger, stationary propane tank in my future for home (off-grid) use to reduce trips to fill the trailer tanks. In answer to another post, I can also verify that this HWH makes a lot of noise when first turned on. But, for some reason, it is less noisy when re-heating.

Atwood 10 gallon WH uses a 10,000btu burner
Propane has 91,600btu per gallon

That is 9.16 HOURS of 'continuous fire' for 1 gallon of propane used

cmarq - Saw your post after mine was submitted. Where did you get the adjustable thermostat? This sounds like a good solution. I have also had leaks (drips) at the outlet and inlet of this HWH. Turned out that the plastic nipples used at the factory (? - I'm not the first owner) transitioned from round ends to square in the middle and could not be tightened enough. Of course, they were 1 3/4" long and the only new ones I found locally were all round and either 1 1/2" or 2" long. The 2" seem to work okay, but changing nipples requires taking off the tubing connectors, which then needed new gaskets to stop new leaks.

Old-Buscuit - Good to know that the HWH gas use is not as bad as I thought, and now I know how to evaluate other gas appliances. The refrigerator is off, so the heater must be running more than I realized.

JRMunn wrote:
cmarq - Saw your post after mine was submitted. Where did you get the adjustable thermostat? This sounds like a good solution. I have also had leaks (drips) at the outlet and inlet of this HWH. Turned out that the plastic nipples used at the factory (? - I'm not the first owner) transitioned from round ends to square in the middle and could not be tightened enough. Of course, they were 1 3/4" long and the only new ones I found locally were all round and either 1 1/2" or 2" long. The 2" seem to work okay, but changing nipples requires taking off the tubing connectors, which then needed new gaskets to stop new leaks.

Posted earlier.....

Atwood does have an adjustable T-stat (110*F to 150*F)
Replaces the T-stat
ECO remains the same

Atwood Adjustable Part No. 93105

Course the lower the temp will result in HOT Water running out quicker.

i set at 120 just wife and myself no problem. also new stick house shower tub valves have adjustable temp settings. I also put in one takes a bit of redesign but is a big improvement over std RV one. Wish I had them when grand kids were little

My heater is electric and gas what happens it drips out water from the pressure relief valve enough so u can see it when parked on a cement slab. Im thinking the water gets to hot. Some one posted a part #93105 not sure where this part # is located on my rig. Hope somone can help thanks........

Gray Fox wrote:
My heater is electric and gas what happens it drips out water from the pressure relief valve enough so u can see it when parked on a cement slab. Im thinking the water gets to hot. Some one posted a part #93105 not sure where this part # is located on my rig. Hope somone can help thanks........

That part number is for the Atwood Adjustable T-stat.....click on link to see

Water dripping from T&P Relief Valve is typically due to the loss of the air pocket in top of WH Tank.....air gap designed into WH Tanks to control pressure increases due to the water swelling when heated.
Air can be compressed...water can't.
No air pocket and pressure increases enough to cause T&P to WEEP

Air gap is established when WH Tank is filled
To RE-establish:
Turn water supply OFF
OPEN a faucet hotside to relieve pressure
OPEN T&P Relief Valve via Lever...hold open until water stops running out
Let T&P SNAP Closed
Close faucet
Turn water supply back on


The model number of your water heater should be in outside compartment on side frame

Old Biscuit, I measured from the kitchen sink tap into a container.