- Outdoor installation with freeze protection
- 83%+ thermal efficiency
- 140,000 BTU maximum input
- 6.6 gallons per minute capacity at 35F degree rise
- Minimum activation flow rate of 0.5 gallons per minute
- Electronic ignition
- Can be used in recirculation and space heating applications
- Backed with 15-year warranty
Eligible for up to $1500 Federal Tax Credit (30% of purchase price and residential installation)
Frequently Asked Questions 
Warranty Info
15 year limited warranty on heat exchanger; 3 year warranty if used in direct recirculating applications
15 year warranty on heat exchanger if used if recirculated through a storage tank such as the Ariston mini-tank
5 year warranty on all other parts
Installation Manual