Rinnai · Series
Rinnai CHS Models (Demand Duo H-Series Hybrid)
The CHS Models are Rinnai's Demand Duo H-Series hybrid water heating system — a tank-plus-tankless combination with a full 80-gallon heating capacity, headed by the CHS13080H. It is a domestic hot water system, not a boiler.
Series facts
- Type
- dhw-only
- Efficiency
- Unknown
- Fuel
- The CHS page states Rinnai hybrid tankless water heaters are available with natural gas or propane fuel options.
- Venting
- Unknown
- Models documented
- 0
- Warranty
- Not verified
About the CHS Models (Demand Duo H-Series Hybrid)
The CHS Models page presents Rinnai's Demand Duo H-Series Hybrid Water Heating System: a combination of tank and tankless technologies with a full 80-gallon heating capacity, positioned by Rinnai as a simple-to-repair replacement for storage-tank water heaters. The captured model code is CHS13080H.
The Demand Duo is a domestic-hot-water system, not a boiler: it stores and delivers hot water rather than heating a building. The captured category page does not print a per-model specification table, so no model records are published for this line in this pass.
Highlights
- Hybrid tank-plus-tankless water heating system — not a boiler
- Demand Duo H-Series with a full 80-gallon heating capacity
- Captured model code CHS13080H
- Natural gas or propane per the official page
Models
CHS Models (Demand Duo H-Series Hybrid) models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
CHS Models (Demand Duo H-Series Hybrid) alerts
No alerts documented for this series yet.
Manuals
Official documents
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Services for Rinnai boilers
Frequently asked questions
Is the Rinnai Demand Duo a boiler?
No. The Demand Duo H-Series is a hybrid domestic water heating system combining a storage tank with tankless heating; it does not provide space heating.
What is the CHS13080H?
CHS13080H is the model code captured on Rinnai's CHS Models page for the Demand Duo H-Series hybrid system with an 80-gallon heating capacity.
Talk to a boiler technician
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Rinnai Canada — CHS Models (Demand Duo H-Series) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.