Singular Combi Boilers
Singular Combi Boilers
Singular Combi Boilers
Singular Combi Boilers


Singular Combi Boilers

A singular solution for reliable heat & hot water.

  • 95% AFUE efficiency
  • Up to 7.7 gallons per minute of domestic hot water production
  • Turndown ratio up to 10:1
  • Built-in boiler circulator pump
Qualifies for IRA Incentives


Bosch Singular Boiler Applications

Singular combi wall boilers provide efficient heating and plenty of hot water for many residential applications. There are two different models to choose from: 155K BTU and 199K BTU. Both can make enough domestic hot water for most residential bathing needs.

Superior Design & Components

Depending on inlet water temperature, the 4000 can run between 2 and 3 showers and the 5200 can run 3 showers plus a dishwasher. There's plenty of endless hot water available with Singular. Both models have a small footprint and are under 80 pounds, making installation a breeze. Features like an exhaust gas outlet sensor and a standard inlet filter screen to keep out debris provide extra protection for the boiler.

Residential Limited Warranty

Receive peace-of-mind knowing you will have a 10 year heat exchanger, 5 year parts, and 1 year labor limited warranty. This standard offering covers the components incorporated into the Singular boiler at the time of manufacture.

Compatible products

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Customer Support & Tech Support

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