Eccotemp Scratch & Dent - Builder Series 6.0 GPM Indoor Liquid Propane Tankless Water Heater - 1779607529402_316

Eccotemp Scratch & Dent - Builder Series 6.0 GPM Indoor Liquid Propane Tankless Water Heater - 1779607529402_316

The Eccotemp Builder Series 6 GPM Indoor Liquid Propane Tankless Water Heater (6GB-ILP) is CSA approved and rated at an impressive 6 GPM with a temperature rise of 45 degrees. This tankless water heater is rated at 145,000 BTU and can produce unlimited hot water for 2-3 applications simultaneously. Eccotemp’s advanced 0.53 GPM low flow ignition technology allows users to enjoy endless hot water without experiencing cold spots.

We recommend the 6 GPM Indoor Liquid Propane Tankless Water Heater (6GB-ILP) for standard to smaller 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 6GB-ILP 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 6GB-ILP pulls less than 0.34 amps during operation, making it ideal for low energy consumption and efficiency.

The Eccotemp 6GB-ILP has been CSA tested and approved for US & Canadian use at elevations up to 2000 feet. Installation and use of the Eccotemp 6GB-ILP above 2000 feet may affect overall product efficiency and performance. 

Features                    

• Rated for 2-3 applications means enjoying on-demand hot showers for up to 2 bathrooms simultaneously
• Rated at 6 GPM (gallons per minute) at 145,000 BTUs with a temperature rise of 45 degrees, this ultra-efficient Builder Series tankless hot water heater is 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 6GB Builder Series is designed for indoor installation only and requires 3-inch venting. Make installation a breeze using the Eccotemp 3" Horizontal Vent Kit or 3” Vertical Vent Kit (purchased separately).
• Limited Manufacturer Warranty (Heat Exchanger: 10 Years, Components: 5 Years, Parts/Accessories: 30 Days), live chat, and self-help guides provide peace of mind, assuring that the Eccotemp 6GB-ING will keep you in hot water for years
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• What's Included: Eccotemp 6 GPM Indoor Liquid Propane Tankless Water Heater (6GB-ILP), mounting hardware, gas appliance shut off valve, and product manual
• The Eccotemp 6GB-ILP 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

• Budget-friendly whole-home propane system: The Eccotemp Builder Series 6.0 GPM Indoor Liquid Propane Tankless Water Heater (Scratch & Dent, SKU: 1779607529402_316) is a space-saving indoor unit designed for continuous on-demand hot water in small to mid-size homes.
• Balanced 6.0 GPM performance class: Delivers up to ~6 GPM with ~145,000 BTU output, supporting 2–3 simultaneous uses such as showers and sinks in typical residential setups.
• Stable modulation system: Uses an automated gas valve + control board system to regulate temperature and maintain consistent output during changing demand.
• Low-energy operation: Designed for efficiency with very low electrical draw for fan, ignition, and control systems, making it cost-effective for daily household use.
• Scratch & Dent value angle: Fully tested working unit but may include cosmetic wear or minor imperfections, offering a lower entry price with standard warranty coverage.
• Indoor installation requirement: Needs proper venting and correct gas line sizing—performance depends heavily on installation quality and setup.
• Trade-off: not for high-demand households: Performance can drop under heavy simultaneous usage (e.g., multiple showers + appliances).
• Trade-off: installation sensitivity: Venting, gas pressure, and water flow must be correctly configured to avoid temperature fluctuations or shutdowns.
• Trade-off: scratch & dent variability: Cosmetic condition may vary even though internal function is tested.

Q&A

Q: What is this Eccotemp 6.0 GPM indoor LP unit?
A: It is a wall-mounted indoor liquid propane tankless water heater designed for small to medium homes, delivering continuous on-demand hot water for multiple fixtures without a storage tank.

Q: What does 6.0 GPM mean?
A: It means the unit can supply up to 6 gallons of hot water per minute, supporting about 2–3 simultaneous uses like showers and sinks under normal conditions.

Q: What is its heating capacity?
A: It is rated at up to 145,000 BTU, allowing stable hot water delivery for typical household demand.

Q: What does “Scratch & Dent” mean?
A: It is a fully tested, working unit that may have cosmetic imperfections or minor refurbishment marks, but still operates like a standard model and comes with manufacturer warranty.

Q: What homes is it best suited for?
A: It is ideal for single-family homes, townhouses, condos, cabins, apartments, and light commercial use, especially where moderate hot water demand is expected.

Q: Is it suitable for indoor installation?
A: Yes. It is designed for indoor wall mounting with proper 3-inch venting, ensuring safe exhaust of combustion gases.

Maintenance Tips

• Descale every 6–12 months to prevent mineral buildup and maintain consistent hot-water output
• Clean inlet water filter regularly to avoid low-pressure errors and ignition failures
• Inspect indoor venting (4” exhaust system) for blockages, leaks, or condensation buildup for safe operation
• Check propane line & regulator for leaks, stable pressure, and secure fittings
• Keep temperature around 120°F to reduce scaling and improve efficiency
• Flush system before peak seasons to maintain stable performance under demand
• Ensure proper indoor clearance & airflow to prevent overheating or shutdown errors
• Test ignition and monitor error codes periodically for early detection of issues
• Use approved descaling solution or kit to protect heat exchanger lifespan
• Schedule annual professional inspection for burner, gas calibration, and safety checks