Rinnai - M090CN - M-Series Domestic Hot Water 5.1 GPH 90,000BTU Combi Condensing Boiler
Why the "M" Series? For maximum momentum. Using proven technology, these boilers are designed to keep your day going and your family happy.
Standard Features:
- Onboard outdoor reset control system with sensor standard
- Prebuilt plumbing kit with insulated Low Loss Header
- Priority DHW standard
- Built in DHW plate heat exchanger
- Domestic hot water plate warming
- Modulating Ceramic premix burner
- 5:1 turn down ratio
- Spark ignition
- Exceeds SCAQMD 1146.2 Low NOx requirements
- Stainless Steel Water tube condensing heat exchanger
- Direct Vent sealed combustion
- Concentric and twin pipe venting adapters included
- Approved for room and closet installations
- Max Input: 90,000 BTUh
- Minimum Input: 23,500 BTUh
- Turndown Ratio: 3.83.1
- DHW Output: 4.2 GPM @ 70 Degrees F
Dimensions:
?FTC Energy Guide
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Rinnai - M090CN - M-Series Domestic Hot Water 5.1 GPH 90,000BTU Combi Condensing Boiler
Rinnai - M090CN - M-Series Domestic Hot Water 5.1 GPH 90,000BTU Combi Condensing Boiler
Why the "M" Series? For maximum momentum. Using proven technology, these boilers are designed to keep your day going and your family happy.
Standard Features:
- Onboard outdoor reset control system with sensor standard
- Prebuilt plumbing kit with insulated Low Loss Header
- Priority DHW standard
- Built in DHW plate heat exchanger
- Domestic hot water plate warming
- Modulating Ceramic premix burner
- 5:1 turn down ratio
- Spark ignition
- Exceeds SCAQMD 1146.2 Low NOx requirements
- Stainless Steel Water tube condensing heat exchanger
- Direct Vent sealed combustion
- Concentric and twin pipe venting adapters included
- Approved for room and closet installations
- Max Input: 90,000 BTUh
- Minimum Input: 23,500 BTUh
- Turndown Ratio: 3.83.1
- DHW Output: 4.2 GPM @ 70 Degrees F
Dimensions:
?FTC Energy Guide
Original: $2,799.93
-65%$2,799.93
$979.98Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Why the "M" Series? For maximum momentum. Using proven technology, these boilers are designed to keep your day going and your family happy.
Standard Features:
- Onboard outdoor reset control system with sensor standard
- Prebuilt plumbing kit with insulated Low Loss Header
- Priority DHW standard
- Built in DHW plate heat exchanger
- Domestic hot water plate warming
- Modulating Ceramic premix burner
- 5:1 turn down ratio
- Spark ignition
- Exceeds SCAQMD 1146.2 Low NOx requirements
- Stainless Steel Water tube condensing heat exchanger
- Direct Vent sealed combustion
- Concentric and twin pipe venting adapters included
- Approved for room and closet installations
- Max Input: 90,000 BTUh
- Minimum Input: 23,500 BTUh
- Turndown Ratio: 3.83.1
- DHW Output: 4.2 GPM @ 70 Degrees F
Dimensions:
?FTC Energy Guide












