Fireplace furnace
A furnace insert is described for an enclosed fireplace having an open front and a chimney, the furnace insert including: a. a generally box-shaped sheet metal outer housing positioned within the fireplace and extending outwardly from within the fireplace and lapping the surrounding fireplace walls, the housing having bottom, top, rear, and opposing side walls; b. a generally box-shaped sheet metal inner housing defining a firebox, the inner housing positioned within the outer housing and having bottom, top, rear and opposing side walls in spaced-apart relation to the corresponding walls of the outer housing to define a heat exchange chamber therebetween; c. a heat exchange chamber air inlet between the bottom wall of the outer housing and the bottom wall of the inner housing for admitting air to the heat exchange chamber for heating; d. a heat exchanger air outlet between the top wall of the outer housing and the top wall of the inner housing for permitting air which has entered the heat exchanger chamber through the inlet and has been heated within the heat exchange chamber to exit the heat exchange chamber into the area to be heated.
- Assignee:
- NOV; NOV-85-021775; EDB-86-165292
- Patent Number(s):
- US 4607612
- OSTI ID:
- 5353511
- Country of Publication:
- United States
- Language:
- English
Similar Records
Double walled fireplace insert and method for loading from the outside
High efficiency heat return fireplace
Related Subjects
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR FLOW
ASHES
BUILDINGS
CHIMNEYS
CONTROL
CONTROL EQUIPMENT
DESIGN
DUCTS
ELEMENTS
ENERGY TRANSFER
EQUIPMENT
FIREPLACES
FLUE GAS
FLUID FLOW
FURNACES
GAS FLOW
GASEOUS WASTES
HEAT EXCHANGERS
HEAT TRANSFER
HEATING
METALS
OPERATION
POSITIONING
RESIDUES
SCALE CONTROL
SEALS
SPACE DEPENDENCE
SPACE HEATING
WALLS
WASTES