Below grade heat recovery ventilator

Details Below grade heat recovery ventilator Below grade heat recovery ventilator

1991-01-18

1992-10-27

Joyce, Harold

Ventilation

Having outlet airway

With air pump

454909, F24F 706

Patent

active

051585014

ABSTRACT:
A below grade heat recovery system discharges air into the drainage system below the floor slab and around the perimeter of a house or building. This air may be warm and moisture laden air ventilated from the building so that a portion of its energy content will be transferred to the surrounding soil, thus raising the soil temperature and reducing below grade heat losses. Pressurization of the sub-soil layer will reduce radon and soil gas transport from the soil, through the floor slab into the basement. Reduced foundation movement will also be reduced by the supply of a relatively constant flow moisture into the soil with the discharged air.

REFERENCES:
patent: 4620398 (1986-11-01), Wallin
patent: 4773309 (1988-09-01), Walters
patent: 4885984 (1989-12-01), Franceus
patent: 4949626 (1990-08-01), Townsend et al.
Michael Lafavore, Radon: the invisible threat, 1987, pp. 134-190.
Radon Reduction in New Construction: An Interim Guide, OPA-87-009, United State Environmental Protection Agency, Aug. 1987.

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