This model has been redesigned to activate at a lower flow rate of 0.8 GPM as well as updated self diagnostics.

The Eccotemp 45H-NG Outdoor Natural Gas Tankless Water Heater is the largest outdoor model of the Eccotemp tankless line. Rated at an impressive 6.8 Gallons Per Minute and 140,000 BTU per hour, the Eccotemp 45H-NG can meet all the hot-water needs of a standard home or apartment with one or two bathrooms, as well as smaller commercial applications. The compact, wall mounted Eccotemp 45H-NG is powered by natural gas. With its fully automated control system, the Eccotemp 45H-NG is the ideal choice for any standard sized home.

Product Features:

• Rated for 2-3 applications used simultaneously means that taking a shower and running two sinks at the same time is effortless. The Eccotemp 45 Series is ideal for normal hot water heating applications in ANY size residential single-family home.
• Rated at 6.8 GPM at 140,000 BTU with a temperature rise of 38 degrees this ultra-efficient tankless water heater is ideal for just about every single-family home in the US and Canada. With Advanced incoming and outgoing water temperature sensor technology, you always have total confidence when it comes to safety.
• CSA certified for installation in the US and Canada. This tankless water heater meets and exceeds all safety and efficiency requirements according to the DOE. With an Energy Factor Rating of .82, you can have peace of mind knowing this tankless water heater is ideal for individuals looking to save money.
• Best in class 10-year product warranty offers peace of mind that the Eccotemp 45 Series will withstand the time and use you need. The Eccotemp 45 Series can be complemented with our patented one of a kind EZ-Flush descaling kit to ensure your tankless water heater is running at maximum efficiency all year long.
• Advanced Generation 2 Computer board with high performance processing and smart adjust technology built in. Our proprietary developed programming meets and exceeds today’s consumer demand needs. With a minimum activation rate at .7 GPM means this tankless water heater is perfect for most low flow applications.
• Uses standard 3/4" NPT water and gas fittings

What's Included:

• 45H Outdoor Natural Gas Tankless Water Heater
• Remote Control Assembly Kit
• Gas Shut-Off Valve
• Instruction Manual
• Installation Hardware
• 10 Year Heat Exchanger/5 Year Parts Warranty

45H Product Info and Manual
45H Warranty

The Eccotemp 45H has been tested for use at elevations up to 2000 feet. Installation and use of the Eccotemp 45H above 2000 feet may affect overall product efficiency and performance. Installation and use of the Eccotemp 45H above 5000 feet is not recommended.

IMPORTANT NOTE: Cannot be used for HYDRONIC SYSTEMS, RECIRCULATING, or FLOOR HEATING.

Please Note: Failure to clean and descale your water heater quarterly can result in lime and sediment build up within the heater, which can void your warranty! We recommend using our Eccotemp EZ-Flush System Descaler Kit to ensure a clean, energy efficient, long lasting heater! Click here for details.

All Whole Home Water Heater purchases will be shipped with SIGNATURE REQUIRED. If you wish to remove SIGNATURE REQUIRED from your shipment please contact Customer Service immediately to have it removed. Please Note: By opting out of SIGNATURE REQUIRED you release Eccotemp Systems, LLC from all liability of lost or stolen packages. Call 1-866-356-1992 or chat with us here to speak with a customer service agent.

CSA 2714806
Class 2901 85
Class 2901 05
Class 2902 93
Class 2902 13

SILVER PLAN: The Eccotemp Silver Protection Plan gives you extended peace of mind. With the purchase of the Eccotemp Silver Protection Plan, you'll receive 12 months of extended warranty coverage. During your period of coverage Eccotemp will provide priority support, a one-time replacement of parts, including the heat exchanger, and a 50% discount on any labor necessary to repair your product. The average cost of repairs without extended warranty coverage is over $200, but the Eccotemp Silver Protection Plan covers the majority of the costs associated with repairs. Additionally, if your product cannot be repaired, the Eccotemp Silver Protection Plan covers a one-time replacement of your product.

GOLD PLAN: The Eccotemp Gold Protection Plan gives you extended peace of mind. With the purchase of the Eccotemp Gold Protection Plan, you'll receive 24 months of extended warranty coverage. During your period of coverage Eccotemp will provide priority support, power surge protection, and a replacement of parts once per year, including the heat exchanger. The average cost of repairs without extended warranty coverage is over $200, but the Eccotemp Gold Protection Plan covers the majority of the costs associated with repairs. Additionally, should you need to send your product in for an inspection or repair, the Eccotemp Gold Protection Plan covers round-trip shipping and a 75% discount on any labor necessary to repair your product. If your product cannot be repaired, the Eccotemp Gold Protection Plan covers a one-time replacement of your product.

DIAMOND PLAN: The Eccotemp Diamond Protection Plan gives you extended peace of mind. With the purchase of the Eccotemp Diamond Protection Plan, you'll receive 36 months of extended warranty coverage. During your period of coverage Eccotemp will provide priority support, power surge protection, and unlimited parts replacements. Not only does the Eccotemp Diamond Protection Plan cover replacement of the heat exchanger and replacement of parts due to freeze damage, but it also covers one replacement of product accessories per agreement. The average cost of repairs without extended warranty coverage is over $200, but the Eccotemp Diamond Protection Plan covers 100% of the costs associated with repairs. Additionally, should you need to send your product in for an inspection or repair, the Eccotemp Diamond Protection Plan covers round-trip shipping and waives the cost of any labor necessary to repair your product. If your product cannot be repaired, the Eccotemp Diamond Protection Plan covers a one-time replacement of your product. Additionally, in the event of a natural disaster or other unforeseen circumstances, the Eccotemp Diamond Plan offers "acts of God" coverage that covers repair and/or replacement of your product.