... CERTIFICATES OF CQC AND CE13) Widely used for electric water heater, washer, electric oven,ice machines, fish ponds, etc ... 40°C ≤4.5°C ±5°C 300-3000 (110)WHD-85 B,E,F,H 30-85 ... °C ≤4.5°C ±5°C 300-3000 (50)WHD-93 B,E,F,H 30-93 ... °C≤4.5°C ±5°C 300-3000 (45)WHD-110 B,E,F,H 30- ... 110°C ≤4.5°C ±5°C 300-3000 (40)WHD-250 B,E,F,H 50-250 ... -3000 Φ3×170WHD-320 B,E,F,H 50-320°C ≤10°C ±8°C 300-3000 Φ3×130 Gas Heater