Forced air furnace with liquid heat exchanger
US4090492A · kind A · utility
7Cited by
3References
2Claims
0Family size
Inventor
Key dates
| Filing date | Sep 27, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Sep 27, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/909
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heating coil in a firebox above a burner is connected to a hot water radiator positioned between the firebox and a hot air outlet. A usual short flue pipe between the firebox and a draft diverter is replaced by a plurality of longer flue pipes of smaller diameter spaced above the firebox for transferring heat to air that is flowing to space that is being heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.