Bosch Tankless Water Heaters
On-Grid Models
Electricity Required
830ES
Stock #1381
Product Features:
- Requires some electricity 40ma at idle and 2.5 A operating
- Weighs 67 lbs
- 18” Wide x 31” Tall x 12” Deep
- Can vent thru wall
- 82%+ thermal efficiency
- 175,000 BTU maximum input
- 8.3 gallons per minute capacity at 35F degree rise
- Minimum activation flow rate of 0.5 gallons per minute
- Electronic ignition and patented burner design
Bosch 830ES Installation Manual
Bosch 830ES Replacement Parts
Off-Grid Models
No Electricity Required
**Off-grid models no longer available. Replacement parts still available.**
330PN
Stock #1369 – No longer available
Product Features:
- Piezo ignition system requires no electrical connection
- 77%+ thermal efficiency
- 74,900 BTU maximum input
- 3.3 gallons per minute capacity at 35F degree rise
Bosch Therm330PN Installation Manual
Bosch 330PN Replacement Parts
520HN
Stock #1371 – No longer available
Product Features:
- Patented Hydro-power ignition requires no electricity
- 80%+ thermal efficiency
- 117,000 BTU maximum input
- 5.3 gallons per minute capacity at 35°F degree rise
Bosch Therm520HN Installation Manual
Bosch 520HN Replacement Parts
520PN
Stock #1373 – No longer available
Product Features:
- Piezo ignition system requires no electrical connection
- 78%+ thermal efficiency
- 117,000 BTU maximum input
- 5.2 gallons per minute capacity at 35F degree rise