Low CO water heater
US7360506B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2006 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Jul 21, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/205
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water heater including a water container, a combustion chamber adjacent the water heater, a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, a flue having an upper portion and a lower portion operatively connected to the combustion chamber and extending through at least a portion of the water container, and a catalytic converter located in the upper portion of the flue. The water heater may also reduce NOx and CO emissions generated by a water heater having a radiant burner including activating the burner in response to the temperature of water in the water heater as needed, and substantially removing accumulated foreign matter on the burner by periodically activating the burner irrespective of the water temperature for a selected amount of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.