Bosch Therm 520 HN NG (Natural Gas) Whole-House Tankless Water Heater
Rating:
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- Sales Rank: #130899 in Home Improvement
- Brand: Bosch
- Model: 520HNNG
- Number of items: 1
- Dimensions: 25.75" h x
8.66" w x
16.73" l,
35.00 pounds
Features
- 117,000 max input (BTU)
- 80% thermal efficiency
- Patented Hydro-power ignition requires no electricity
- Endless hot water for up to 2 applications at a time
- Vents with galvanized B vent - natural draft
- 117,000 max input (BTU)
- 80% thermal efficiency
- Patented Hydro-power ignition requires no electricity
- Endless hot water for up to 2 applications at a time
- Vents with galvanized B vent - natural draft
The Therm 520 HN incorporates an evolutionary hydro-power ignition system which allows this tankless water heater to work without a standing pilot, grid connection or battery! A small turbine inside the water heater uses the energy from the flowing water to ignite the burner. The modulating gas valve then maintains a constant temperature at varying flow rates. This innovative technology, patented by Bosch, makes this an ideal product for installations without access to electricity or regions prone to inclement weather and power outages.
Customer Reviews
Most helpful customer reviews
9 of 10 people found the following review helpful.
Simply wouldn't work.
By Rhode Island
We had this unit in our house for nine months before finally giving up on it. From the beginning, it was awful. It would randomly cut off when we were taking a shower, usually after about 2 minutes, leaving the water ice cold. We had the Bosch-certified technician who installed it back many times, and he couldn't figure out what was wrong. Eventually he was told by Bosch that we needed new mixing valves on the showers. As unlikely as it was that valves would fail on TWO different showers at the same time, we went ahead and spent $700 on plumbing repairs at the insistence of the Bosch folks. The result was the same cold showers. We had the city check our water pressure and change our meter. Still no good. We had a tech from Bosch look at it. No one could fix it.Finally, we told the installer to take it out and put in a tank. Out installer is refunding us the installation and price of the unit. We are trying to get some redress from Bosch for the unnecessary plumbing work and two service calls.The thing is a lemon. We have a Bosch oven, too, and we had to replace the same part on it twice in 5 years. No more Bosch products for us, ever.
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