Plumbing – Custom Riverhouse Construction Blog

Hot Water Temperature Regulator

The hot water to the tub was not hot enough. So, we cranked up the temperature on the water heater, but it didn’t seem to help. The water at the sink was unquestionably hotter than at the tub, which was nearby. Finally, we found this temperature regulator under the sink which controlled the hot water to the tub. It has an adjustment valve that allows you to change the blend and turn up the heat. Problem solved.

Here’s the description from the manufacturer’s website

“How They Work
Upon use of tempered water, a thermostat in the mixing chamber of the valve senses the outlet temperature. The thermostat automatically positions a seat assembly which controls the flow of hot and cold water supplied to the mixing chamber. If the mixed outlet temperature increases, the thermostat will expand moving the seat assembly to allow the cold water inlet port to open more fully and at the same time restricting the hot water inlet port. Conversely, if the mixed outlet temperature decreases, the thermostat will contract moving the seat assembly to allow the hot water inlet port to open more fully and at the same time restricting the cold water inlet port. In both cases the mixed outlet water temperature is automatically and continually maintained at the preset temperature within the tolerances of the valve. In the event of a cold or hot water supply failure, the seat assembly moves to an extreme position shutting off the hot or cold inlet water port. A mechanical adjustment permits selection of the desired outlet water temperature within range of the valve.” www.watts.com

Endless Hot Water – The Tankless Option

We chose a Rinnai tankless water heater with a recirculation pump, instead of a traditional water heater. I think the recirculation pump is the “coolest” feature of all, and I’ll describe it later. The unit is natural gas fired, and mounted on an exterior wall in the garage. Our Model is a Rinnai RUR98.

Here is a picture of the unit installed. As you can see it vents directly outside, so there is no need for a separate through-the-roof exhaust vent. And its easily accessible from the outside, in case of repairs or adjustments.

The heater comes with an external digital controller, shown here, which sits inside the garage on top of the metal case which encloses the water heater. Apparently, there is an option to add a wireless controller, which we have not yet done.

One of the best features is the recirculation pump, which is built into the unit. Since, this house was a new build, our plumber installed a hot water recirculation loop which runs to each bath and sink. That way, when the reciculation cycle is on at the heater, you have nearly instant hot water, similar to what you find at nice hotels.

The controller has a setting where you can configure the daily time for the recirculation pump to run, typically in the morning and at night. Or, you can just manually turn it on from the controller. When the unit is recirculating, it is clear that the heater is firing, so you do pay an energy demand price for the instant hot water.

We are still playing with it all. I am not yet sure of the energy use, especially with the recirculation pump running.

Firepit Construction

Firepit Details

Here are some pictures from the construction of our firepit. The pit is about 30 inches inside diameter and 56 inches outside. It is set on a concrete base, has a fire brick lined interior, limestone exterior, and flat stone top. The gas ring is stainless steel, set on a stainless pan and connected underground to our natural gas line from the house. There is an access door on the side of the pit, where a traditional gas key and valve control the gas flow. We also have a locking valve on the gas line near the house to cut off the flow when we are out of town.

We used three bags of 30 pound rain forest black (actually grey) lava pebbles which were “tumbled” to create a smoother finish, for a total of 90 pounds. I may add another bag or two.

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Cast Iron Tub Installed

Here is the tub installed. We decided to place it on some surplus beams, rather than the traditional claw feet. The beams will protect the tile flooring and are really more stable and a nicer finish than the feet. The but sports the refurbished old nickel faucet, and it’s full of water to test the drain plug (which obviously works).

Below is a close up of the fine stainless steel plumbing connecting the tub to the water and drain. It really turned out well!

Cast Iron Claw Foot Tub

Clawfoot tub in its native habitat (e.g. discarded in a field).

About the time the foundation was being poured, we made a visit to the Clawfoot Tub Doctor, located near Brenham, Texas to see about purchasing an old cast iron tub. Mike, the owner (and resident tub doctor), showed us the inventory scattered through his field. We selected a 5 footer, which had an old nickel fixture, and made a deal with Mike to refinish it all. He worked more quickly than we did and the tub was ready in about a month, with new white enamel and a working fixture.

With Mike’s help we loaded the tub onto the bed of our F-150, with his forklift. We then drove it back to the house, where I had a couple of burly guys waiting to help us unload. I would guess the tub weighted about 200 – 250 pounds, and could be managed by two strong fellows.

My wife decided to remove the antique claw feet, and our carpenters prepared a wood cradle from some scrap wood from another project. It’s not yet installed — I will post another picture when were are finally done.

Made in the USA
Standard Sanitary Mfg. Co. Louisville
Manufacture Date 2-25-1927

Made in the good old USA and, yes, it really is “old” — 1927.