Ask This Old House plumbing and heating expert Richard Trethewey heads to Milwaukee to install an instantaneous water heater.
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Cost: $2000
Skill Level: Expert
Tools List for Installing a Tankless Water Heater:
Pipe wrench [https://amzn.to/30C1bcN]
Drill [https://amzn.to/2xMFxWQ]
Hole saw [https://amzn.to/2JuwyjA]
Shopping List:
1” gas line and fittings [https://amzn.to/2XN1e3E]
4” PVC pipe and fittings [https://amzn.to/2XO6Pa1]
PVC glue [https://amzn.to/2Jy9wsd]
Teflon tape [https://amzn.to/2xQB45f]
copper pipe and fittings [https://amzn.to/2JxhRwo]
Pipe cutter [https://amzn.to/30vgHa5]
Steps:
1. An installation like this that involves gas piping is best left to a licensed, professional plumber.
2. Shut off the water and the gas to the hot water tank. Drain the water out of the tank and remove the old tank.
3. The new water heater may require a larger gas line, which will need to be run from the gas meter to the water heater.
4. Using the hole saw, drill a hole on the outside of the house near the location of the water heater. Run PVC pipes for the fresh air intake and vent through that hole.
5. Connect the cold water supply line to the water heater and the hot lines out of the heater using the _” copper pipe.
6. An on-demand water heater requires an electrical outlet. An electrician may need to assist in adding one near the installation location.
7. A cross-over valve can be installed at the furthest plumbing fixture to allow the built-in recirculation pump to keep hot water at the ready.
8. Turn on the cold water supply, gas supply, and power to the water heater and test.
Resources:
Richard installed an RUR Super High Efficiency Plus instantaneous hot water heater [https://amzn.to/2JxgPk3], manufactured by Rinnai.
Expert assistance for this project was provided by Budiac Plumbing & Heating, Inc of Milwaukee, WIsconsin.
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
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How to Install a Tankless Water Heater | Ask This Old House
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View Comments
Richard said 120 degrees and i got scared i said wow thats Hot!! but halfway through i realized it was Fahrenheit
I like how they touched hands at the end.
0:04 Umm... what is a hot water heater?
I live In Fl & I want to get an Electric Tankless Water heater! I was told that you must upgrade your Electrical wiring/panel In order to get this In my home. Does anyone have an Idea as to how much $ will It cost me to Upgrade ?
Thanks
All BS people. Wake up. Heat goes up one way or another.
So we got have them made this way and in 10 years this way.
https://www.thisoldhouse.com/plumbing/21015943/understanding-new-water-heater-regulations
This didn't explain anything either. Smoke and Mirrors. Kissing the EPAS NWO hiney.
I've always had a big tank water heater, and I always have to wait for hot water. In Japan, I had one of these things and the hot water came on really quickly!
Curious living on Long Island NY the knock against tankless or on demand water heaters is the cost of electricity. What is the argument for tankless or on demand water heaters regarding balance against energy costs understanding that a standard water heater is on 24/7?
IS IT NORMAL FOR TANKLESS WATER HEATER ? we notice the smell of gas in our backyard often as the heater runs through it's cycles.
A HIGH SCHOOL STUDENT INVENTS A DEVICE THAT USES A HEATER TO KILL COVID-19 https://www.youtube.com/watch?v=dooLWRAkUME&t=120s
it pays off to be a bit short.