balanced shower

The Delta 17 series does have anit-scald. The only way to get automatic temperature control is to go with the digital shower controls like the Kohler, Moen or Goewe. Now you are looking at spending $750 to $1000 just for a shower control. On the plus side, the valve unit is mounted remotely so installation becomes easier.

I just got done installing a Delta unit in my house. With some creativity you could mount one more or less on the surface in the shower if you built a sealed box to cover it. They even make them with PEX supply barbs.

Be aware that most US shower valves are pressure balancing (covering the case where someone flushes the toilet), not thermostatic. The problem in an RV is mainly that the temperature out of the water heater changes a lot as the water gets used up but the pressure out of the hot and cold taps remains relatively equal. You'll still be getting balanced pressure out of the shower valve for a non-thermostatic unit but you won't have any real anti-scald or automatic temperature control. I think you are better off installing a tempering valve that mixes hot and cool water together at the output of the water heater to hit 120 degrees maximum in the shower. That will self regulate until the water heater output temperature drops too low.
http://www.watts.com/pages/_products_details.asp?pid=6841

Clay L wrote:
Delta makes temperature controlled shower faucets. I had them in my last house. Not cheap - $250 or so. See HERE
This is what they say about them.
"The long and short of it: This 17 Series Dual Temperature and Pressure Shower Control is a fully functioning Shower Faucet without the showerhead. It features a Large Handle to control the Shower (on/off) along with a smaller Handle used to set the temperature. You can set the temperature however you prefer and then just leave that smaller handle in place. Every time you take a shower you will simply turn it on with the large handle and the water come out exactly at your preferred level of warmth! This fixture also includes the required Rough-in Valve which installs in the wall. This item can work with any showerhead or handheld shower when plumbed correctly in the wall. It mixes the water from your hot and cold water lines in the wall and sends out a stream of warm water to whatever shower spray you choose."

Have that exact control in my master bath. I suppose I could make it work in my RV shower because the escutcheon plate would cover the existing holes where the water lines enter. However, it requires 3 inches of clearance behind the mounting surface. That would put the water lines in the living room as the wall behind the shower is not 3 inches thick. The temperature high limit on that valve is set by adjusting a mechanical stop which is splined onto the cartridge shaft and contacts a boss on the back of the control handle.

https://www.amazon.com/dp/B01FAGWKTC/_encoding=UTF8?coliid=I1CROXZW0Q2N76&colid=GL2NMQQW3MV7

Plumb this off your water heater, it'll mix down your hot to what ever your setting is at all faucets.

Delta makes temperature controlled shower faucets. I had them in my last house. Not cheap - $250 or so. See HERE
This is what they say about them.
"The long and short of it: This 17 Series Dual Temperature and Pressure Shower Control is a fully functioning Shower Faucet without the showerhead. It features a Large Handle to control the Shower (on/off) along with a smaller Handle used to set the temperature. You can set the temperature however you prefer and then just leave that smaller handle in place. Every time you take a shower you will simply turn it on with the large handle and the water come out exactly at your preferred level of warmth! This fixture also includes the required Rough-in Valve which installs in the wall. This item can work with any showerhead or handheld shower when plumbed correctly in the wall. It mixes the water from your hot and cold water lines in the wall and sends out a stream of warm water to whatever shower spray you choose."

westend wrote:

schwartzworld wrote:

road2002runner wrote:
Anyone know of a replacement shower control that you can balance to your tastes.

bbt

Here you go. Set the temp once and your all set.
https://www.amazon.com/Amzdeal-Shower-Diverter-Thermostatic-Bathroom/dp/B00ZWDYMYA/ref=pd_sbs_194_1?_encoding=UTF8&pd_rd_i=B00ZWDYMYA&pd_rd_r=MNHD3GQ484TWSET1BPG4&pd_rd_w=Xbtm1&pd_rd_wg=MScrt&psc=1&refRID=MNHD3GQ484TWSET1BPG4

Only problem with that is that it appears to have an 8" supply offset. That is not a typical RV offset.

If the OP could get along with reduced temperature from the "hot" side in all the fixtures, opening the usual winterization bypass valve a small bit would act like a mixing valve.

It's pretty bad that these high-fixed temp RV water heaters are not required to have an anti-scald valve installed (at least in the shower).

Look on YouTube. There are installations documented there. The offset is not an issue if you are creative. It's an easy install.

schwartzworld wrote:

road2002runner wrote:
Anyone know of a replacement shower control that you can balance to your tastes.

bbt

Here you go. Set the temp once and your all set.
https://www.amazon.com/Amzdeal-Shower-Diverter-Thermostatic-Bathroom/dp/B00ZWDYMYA/ref=pd_sbs_194_1?_encoding=UTF8&pd_rd_i=B00ZWDYMYA&pd_rd_r=MNHD3GQ484TWSET1BPG4&pd_rd_w=Xbtm1&pd_rd_wg=MScrt&psc=1&refRID=MNHD3GQ484TWSET1BPG4

Only problem with that is that it appears to have an 8" supply offset. That is not a typical RV offset.

If the OP could get along with reduced temperature from the "hot" side in all the fixtures, opening the usual winterization bypass valve a small bit would act like a mixing valve.

It's pretty bad that these high-fixed temp RV water heaters are not required to have an anti-scald valve installed (at least in the shower).

road2002runner wrote:
Anyone know of a replacement shower control that you can balance to your tastes.

bbt

Here you go. Set the temp once and your all set.
https://www.amazon.com/Amzdeal-Shower-Diverter-Thermostatic-Bathroom/dp/B00ZWDYMYA/ref=pd_sbs_194_1?_encoding=UTF8&pd_rd_i=B00ZWDYMYA&pd_rd_r=MNHD3GQ484TWSET1BPG4&pd_rd_w=Xbtm1&pd_rd_wg=MScrt&psc=1&refRID=MNHD3GQ484TWSET1BPG4

There are adjustable RV water heater t-stats. Just do a search on the net.

Dusty

JimK-NY wrote:
I assume you mean balance the water temperature? I am not sure what is wrong with standard shower. Anyway I found a better way of doing this. I have a timer and heat my water for the exact time needed for a perfect shower using only hot water. One reason I did that is to avoid wasting water while trying to get the temperature right.

I also heat my hot water tank to comfortable temp then get in it using only the hot water tap
Otherwise by the time you adjust both the cold and the hot water taps to get it comfortable its time to get out. Theres only 6 gallons. Five gallons gone by the time the proper temp is found. One gallon left to quickly clean up with. Such aggravation.