Input Max BMH: 117
Vent Material: B-Vent
Gas Type: Natural Gas
GPM @ 55 Degree Rise: 3.4
520HN NG – Natural Gas
Description
- 520HN – Up to 80% thermal efficiency
- 520HN – Requires no electricity
- 520HN – Uses B-Vent
- 520HN – 15-Year residential heat exchanger with online registration
- 520HN – 2-Year parts warranty with online registration
