Eccotemp Builder Series 7.0 GPM Outdoor Natural Gas Tankless Water Heater - 1779607503961_856

Eccotemp Builder Series 7.0 GPM Outdoor Natural Gas Tankless Water Heater - 1779607503961_856

The Eccotemp 7.0 GPM Outdoor Natural Gas Tankless Water Heater (7GB-NG) is the largest capacity model in the Builder Series. CSA approved and rated at an impressive 7 GPM with a temperature rise of 45 degrees. This tankless water heater is rated at 180,000 BTU and can produce unlimited hot water for 4-5 applications simultaneously. Eccotemp’s advanced 0.79 GPM low flow ignition technology allows users to enjoy endless hot water without experiencing cold spots.

We recommend the 7.0 GPM Outdoor Natural Gas Tankless Water Heater (7GB-NG) for large, medium, small size single family homes, townhomes, condos, cabins, as well as smaller commercial applications and home builders. With our upgraded product control board performance and an all-new gas modulating valve, consumers can experience best in class temperature performance that is budget friendly.

The space saving wall mounted Eccotemp 7GB-NG has a 110/120-volt UL listed power cord that powers the internal exhaust fan, anti-Freeze protection and product control board. With its fully automated control system, the Eccotemp 7GB-NG pulls less than 0.61 amps during operation, making it ideal for low energy consumption and efficiency.

The Eccotemp 7GB-NG has been CSA tested and approved for US & Canadian use at elevations up to 2000 feet. Installation and use of the Eccotemp 7GB-NG above 2000 feet may affect overall product efficiency and performance.

All purchases valued at $75 or above will be shipped with SIGNATURE REQUIRED. If you wish to remove the SIGNATURE REQUIRED please contact Customer Service. Please Note: By opting out of SIGNATURE REQUIRED, you release Eccotemp from all liability of lost or stolen packages. Call 1-866-356-1992 or chat with us to speak with a customer service agent.

Features                    

• Rated for 4-5 applications means enjoying on-demand hot showers for up to 3 bathrooms simultaneously
• Rated at 7 GPM (gallons per minute) at 180,000 BTUs with a temperature rise of 45 degrees, this ultra-efficient tankless hot water heater is the largest capacity model in the Eccotemp Builder Series and ideal for just about every size single-family home, townhome, condo, cabin, apartment, or light commercial use in the US and Canada
• 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
• Advanced Generation 3 Computer board with high performance processing and smart adjust technology built in. Our proprietary developed programming meets and exceeds today’s consumer demands
• With advanced incoming and outgoing water temperature sensor technology, you always have total confidence when it comes to safety
• The 7GB Builder Series is designed for outdoor installation. Outdoor models do not require a venting system.
• Limited Manufacturer Warranty (Heat Exchanger: 10 Years, Components: 5 Years, Parts/Accessories: 30 Days), live chat, and self-help guides will give you peace of mind that the Eccotemp 7GB-NG will keep you in hot water for years
• What's Included: Eccotemp 7.0 GPM Outdoor Natural Gas Tankless Water Heater (7GB-NG), mounting hardware, gas appliance shut off valve, remote control, and product manual
• The Eccotemp 7GB-NG 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

What our Experts Think

• High-capacity outdoor tankless system — The Eccotemp Builder Series 7.0 GPM Outdoor Natural Gas Tankless Water Heater (1779607503961_856) is the largest flow model in the Builder lineup, designed for whole-home hot water demand with multiple simultaneous uses.
• Strong whole-house output — Delivers up to 7.0 GPM at ~180,000 BTU, supporting roughly 4–5 applications at once (showers, sinks, appliances), making it suitable for larger households or high-demand homes.
• Outdoor installation = no venting required — Built for exterior wall mounting, it removes the need for indoor vent piping while using an integrated exhaust fan and weather-protected housing.
• Energy-efficient continuous heating — On-demand operation ensures “endless” hot water while modulating gas input to maintain stable temperatures and reduce waste compared to storage tanks.
• Smart control system with protection features — Includes temperature sensors, anti-freeze protection, and a computerized control board for safer and more stable operation in varying climates.
• Best suited for residential + light commercial use — Commonly recommended for single-family homes, townhouses, cabins, and small commercial setups needing reliable high-flow hot water.
• Important installation note — Requires proper gas line sizing and professional installation; outdoor mounting also demands correct placement for weather exposure and access.

                   
Q&A  

Q: What is this Eccotemp 7.0 GPM unit?
A: It is a scratch & dent version of the Eccotemp Builder Series 7GB-NG outdoor natural gas tankless water heater, designed for high-demand residential and light commercial hot water use.

Q: What does “scratch & dent” mean?
A: It means the unit is fully functional but may have cosmetic imperfections from handling or packaging, typically sold at a discounted price.

Q: What is the flow rate and performance?
A: It delivers up to 7.0 GPM (gallons per minute) with a temperature rise of about 45°F, powered by up to 180,000 BTU natural gas input, supporting multiple simultaneous hot water uses.

Q: Is it indoor or outdoor installation?
A: It is an outdoor-mounted unit, meaning no venting system is required, making installation simpler compared to indoor tankless heaters.

Q: How many bathrooms can it support?
A: It can typically support 4–5 simultaneous applications, such as multiple showers, sinks, or appliances at the same time.

Q: What type of gas does it use?
A: This model uses natural gas (NG) and requires a proper 3/4" gas connection for installation.

Q: Does it need electricity?
A: Yes. It uses a 110/120V power supply for the control board, ignition system, and internal fan, but power consumption is very low.

Q: What homes is it suitable for?
A: It is ideal for medium to large homes, cabins, townhouses, condos, and light commercial setups with high hot water demand. 

                 
Maintenance Tips                

• Flush the unit every 6–12 months to prevent scale buildup and maintain heating efficiency
• Clean the inlet water filter regularly to avoid flow restriction and ignition issues
• Check gas line connections for leaks, corrosion, or loose fittings before operation
• Ensure outdoor installation area is clear of debris and has proper ventilation (no enclosure blockage)
• Inspect vent-free exhaust outlet and anti-freeze protection system for proper operation
• Descale heat exchanger in hard water areas to maintain stable temperature output
• Verify water pressure remains within recommended operating range (avoid low-flow issues)
• Keep unit exterior clean; avoid dirt, insects, and debris entering the casing
• Inspect temperature sensors and control panel for error codes and respond early
• Do not use for hydronic, floor heating, or recirculating systems
• Shut off gas and water supply before performing any maintenance
• Schedule professional servicing every 12 months for optimal safety and performance