What it delivers
The Eccotemp 7GB-NG Natural Gas Outdoor Tankless Water Heater is an outdoor gas tankless with a 180,000 BTU/h burner and a stated maximum flow of 7.0 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 6.2 GPM at a 45°F rise, falling to 4.0 GPM at 70°F, which is 1 shower at 2 GPM on a cold-climate winter day. Check it against your own fixtures.
The line must deliver about 174 cubic feet of natural gas an hour when it fires flat out. The requirement calculator adds it up; a licensed fitter confirms the pipe.
Outdoor units vent straight out of the cabinet, which saves the vent run and the wall penetration; plan for freeze protection and a pipe cover where winters bite.
The listing describes its venting as: outdoor installation.
Also on the listing: features: Freeze Protection, High Flow Rate, Tankless; material: Alloy Steel; model: 7GB-NG.
The listing gives dimensions of 17.1 in (W) x 26.2 in (H) and a weight of 44 lb.
Warranty, per the listing: 10-Year limited manufacturer warranty (heat element: 10-years, Parts: five years).
Right unit for this house?
Install it when
- One shower at a time in cold climates
- Replacing a gas tank heater
Look at another unit when
- More than 1 winter shower at once
- Homes without a gas line
Strengths and trade-offs
Strengths
- 180,000 BTU/h input
- Up to 7.0 GPM
- No vent pipe
Trade-offs
- Needs a gas line sized for the load
- Needs freeze protection outdoors
- Scale builds up without flushing
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | 7GB-NG | Retailer |
|---|---|---|
| Dimensions (seller) | 17.1"W x 26.2"H | Retailer |
| Features (seller) | Freeze Protection, High Flow Rate, Tankless | Retailer |
| Voltage | 120 V | Retailer |
| Max flow (maker) | 7 GPM | Retailer |
| Input (maker) | 180,000 BTU/h | Retailer |
| Product weight | 44 lb | Retailer |
| Warranty | 10-Year limited manufacturer warranty (heat element: 10-years, Parts: five years) | Retailer |
| Material | Alloy Steel | Retailer |
| Fuel | ng | Retailer |
| Venting | outdoor installation | Retailer |
Rival units at this flow
More gas tankless water heaters rated for similar demand
Final verdict
A practical outdoor gas tankless for one shower at a time in cold climates.
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