Raypak Delta Limited Series Water Heaters and Hydronic Boilers are designed for a wide variety of hot water and floor heat requirements. Easy to install, operate and service. Simple multi-stage operation for reliable performance and easy maintenance. Models from 399,000 to 1,800,000 Btu’s are shown but
larger sizes are available.
- 83-85% efficiencies
- Copper-finned tube heat exchangers, (5-year warranty)
- Glass-lined cast iron headers, (bronze available)
- Powder-coated cabinets
- Simple electronic controller and status display for easy monitoring
- Fan-Assisted. Direct vent capable. Ducted combustion air ready
- Cat 1 for vertical venting, Cat 111 for side wall venting
- Ratings are shown for up to 2000ft elevations, (call for higher elevations)
- Output temperatures to 200° F for water heaters and 230° F for hydronic boilers
- Minimum non-condensing inlet temperature is 105° F
- Water Heaters are designed for use with storage tanks, (not direct fire heat)
- Hydronic boilers are designed for re-circulating floor heat systems
- CSA low-lead certified
- 100% factory fire tested prior to shipping
- Assembled in USA
- Pumps and tanks are not included but are available if required
**Note: Water exceeding 16 grains hardness requires tube exchanger upgrade
Models WH749/H749 are rated at 750,000 btu input. Output is 638,000 btu for water heaters and 630,000 btu for boilers. Dimensions are 67” wide x 19” deep x 34” high. Shipping weight, 675 lbs.