Title:
Swimming pool heater
United States Patent 3207133
US Patent References:
/1236416.html
- - 1236416

/1298254.html
- - 1298254

/1318355.html
- - 1318355

Pneumatic draft regulator
- - 1770588

Heating apparatus
- - 1869939


Inventors:
Andersen, Harold W.
Publication Date:
09/21/1965
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Assignee:
Andersen, Prod H. W.
Primary Class:
122/250R
Other Classes:
110/160, 4/493, 4/545
International Classes:
E04H4/12; E04H4/00
US Patent References:
2186802Heating apparatus
2453985Fluid heater
2584326Stack draft booster and control device for combustion apparatus
2634712Fluid heating unit
2827268Liquid transporting apparatus
2841124Midget gas fired hot water boiler
2884197Thermostatic flow governor
2906258Steam generating apparatus
2987259Water heating and spray apparatus
2989185Surface skimmer for swimming pools and method
3118430Water heater
Foreign References:
GB379244A