Tankless Water Heaters - Noritz Residential Tankless Water Heater - N-0531S-LP - Indoor / Outdoor, 3" Venting - Liquid PropaneThis product model changed to model NR66-SV-LP The 0531 series Noritz Residential Tankless Water Heater is perfect for apartments, condominiums and townhouses with 1-2 showers. Model N-0531S-LP provides up to 6.6 GPM @ 35 degree temperature rise and 5.3 GPM @ 45 degree rise. When properly sized, they provide an endless supply of hot water and are designed to be more efficient than traditional tank-type water heaters. These compact water heaters will save space without compromising power. Available in Liquid Propane Gas models, this unit can be used as indoor / outdoor heater and vented horizontally or vertically. Built-in features include safety lock-out, freeze protection, and high elevation adjustment. 
| Noritz Tankless Water Heater N-0531S-LP - Specifications |
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| Model Name | N-0531S |
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| Gas Type | Liquid Propane |
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| Gas Consumption | Max:140,000 BTU/Hr - Min:20,000 BTU/Hr |
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| Thermal Efficiency | 83% |
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| Maximum Hot Water Capacity | 45 degree F Rise | 5.3 Gal./min. |
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| Capacity Range | 0.5-6.6 Gal./min. |
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| Temperature Settings (Deg) | 100-150 F (In 5 F intervals), 160 F (12 Options) |
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| Default Temperature Options (Deg) | 120, 130, 140 F (Original is 120 F) |
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| Type | Installation | Indoor/ Outdoor, Wall Mounted |
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| Air Supply/Exhaust | Power Vented | | Connection Sizes | Water Inlet | 3/4" |
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| Hot Water Outlet | 3/4" | | Gas Inlet | 3/4" | | Power Supply | Supply | 120 VAC (60Hz) |
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| Consumption | 59W Freeze Prevention 141W | | Materials | Casing | Zincified Steel Plate/Polyester Coating |
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| Flue Collar | Stainless Steel | | Heat Exchanger | Copper Sheeting, Copper Tubing | | Ignition | Direct Ignition |
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| Operating Pressure | 15-150 psi |
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| Minimum Flow Rate | 0.5 GPM |
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| Dimensions | 20.5"H x 13.8"W x 6.7"D |
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| Weight | 36 lbs. |
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| Water Holding Capacity | 0.2 Gallon |
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| Safety Devices | Flame Rod, Thermal Fuse, Lightning Protection Device (ZNR), Overheat Prevention Device, Freezing Prevention Device, Fan Rotation Detector |
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| Accessories | Anchoring Screws |
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Noritz Tankless Water Heater Features: - Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
- Standard burner - High performance single flame burner.
- Fully modulating burner - Automatically adjusts burner level accordingly.
- Turbo Flow - Up to 6.6 GPM @ 35 degree temperature rise (5.3 GPM @ 45 degree rise).
- Direct ignition - No standby pilot light.
- Thermal fuse - Automatic overheat protection system.
- Resin coated PC board - Increases durability and protection from elements.
- Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
- Resin coated PC board - Increases durability and protection from elements.
- Available in Natural Gas (NG) models.
- Temperature Settings: 100-160F (12 options)
- Thermal efficiency for all models: 83%
- Self-diagnostic onboard computer system
- Battery back-up compatible
- Recirculation compatible
- QUALIFIES FOR UP TO $1,500 TAX CREDIT (2009-2010 only)
- WARNING!!! PVC cannot be used for venting. Only Category III (3" stainless steel venting).
Noritz Tankless Water Heater Accessories: - Isolation valves (#IK-WV-4)
- Outdoor vent cap (#VC-3) for N-0531S
- Pipe cover (#PC-1S)
- Remote controller (#RC-7649M; for Canada #RC-7650M)
- Remote controller cord (10 ft.: #RC-CORD10; 26 ft.: #RC-CORD26)
- Remote controller outdoor junction box (#RC-OJB)
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