Induced draft system for residential heaters
US4424792A · kind A · utility
31Cited by
5References
13Claims
0Family size
Inventors
Key dates
| Filing date | Mar 29, 1982 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Mar 29, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23L17/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heater without a chimney is installed inside of a residence. An induced draft system is installed outside of the residence. The heater exhaust gases are connected to the induced draft system with an insulated through the wall exhaust pipe which is cooled by mixing cool outside air with the exhaust gases as they are exhausted to the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.