Stephen M Kujawa

US Patent:

46389440, Jan 27, 1987

Filed:

Apr 21, 1986

Appl. No.:

6/853858

Inventors:

Stephen M. Kujawa - Elmira OR
Melvin H. Simon - Cottage Grove OR

International Classification:

F24D 300

US Classification:

237 8R

Abstract:

A point of use, instantaneous, high-volume water heating system includes a compact accumulator tank fed by one or more instantaneous gas-fired auxiliary water heaters operating asynchronously to provide a supply of hot water on demand heated to a predetermined temperature. The accumulator tank includes a baffle which separates water in the tank into two temperature zones. A thermostat within the accumulator controls a pump which feeds water from a conventional water heater to the auxiliary water heaters, or alternatively recycles tank water to the auxiliary heaters, when the temperature in the accumulator tank drops below a predetermined minimum.

US Patent:

61315362, Oct 17, 2000

Filed:

Jun 30, 1999

Appl. No.:

9/345591

Inventors:

Stephen M. Kujawa - Elmira OR

International Classification:

F22B 3742
F22B 2714

US Classification:

122 1422

Abstract:

An instantaneous fluid heating system includes a fluid source, a use point for intermittently demanding fluid from the fluid source, an instantaneous IR gas heater, and a temperature sensor positioned external to the heater. The instantaneous IR gas heater is interposed operatively between the fluid source and the use point. The temperature sensor controls the regulation of the heater in response to output fluid temperature.