S20
Heating Area
1,100 ft²
BTUs
20,000
Efficiency
74.5%
Westley
Heating Area
1,700 ft²
BTUs
29,000
Efficiency
67%
S50
Heating Area
1,500 ft²
BTUs
30,000
Efficiency
68%
S40
Heating Area
2,000 ft²
BTUs
40,000
Efficiency
65.9%
Berkeley
Heating Area
2,000 ft²
BTUs
40,000
Efficiency
66.6%
Westport Cast Iron
Heating Area
1,700 ft²
BTUs
30,000
Efficiency
64.9%
Westport Steel
Heating Area
1,700 ft²
BTUs
30,000
Efficiency
64.9%
Cube
Heating Area
1,700 ft²
BTUs
30,000
Efficiency
60%