A strong value outdoor heater for a natural gas home in a mild climate, with a better warranty than most budget rivals.
Amazon $499The Eccotemp 7GB Builder Grade and the Gasland Gasmart E CE686 are evenly matched, rated 4.1 and 4.0. The Gasland Gasmart E CE686 wins on heating power. The Eccotemp 7GB Builder Grade costs $130.99 less ($499 vs $629.99).
A low priced whole home heater for buyers who accept a short warranty and thin documentation to save several hundred dollars.
Amazon $629.99 Amazon $629.99Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Gasland Gasmart E CE686 for heating power (199,000 BTU/h vs 180,000 BTU/h).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas tankless water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Eccotemp 7GB Builder Grade | Gasland Gasmart E CE686 |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Value 35% | 100 $2.77 per 1,000 BTU/h ($499, 180,000 BTU/h) | 100 $3.17 per 1,000 BTU/h ($629.99, 199,000 BTU/h) |
| Heating power 25% | 76 180,000 BTU/h | 100 199,000 BTU/h |
| Efficiency 15% | 50 UEF not published (neutral score used) | 0 0.80 UEF |
| Warranty 25% | 50 10-year heat exchanger warranty | 50 heat exchanger warranty not published (neutral score used) |
Specifications
| Eccotemp 7GB Builder Grade | Gasland Gasmart E CE686 | |
|---|---|---|
| Heating | ||
| Fuel | Gas | Gas |
| Gas type | Natural gas | Natural gas or propane |
| Gas input | 180,000 BTU/h | 199,000 BTU/h |
| Max flow | 7 GPM | 7.6 GPM |
| UEF | - | 0.80 |
| Condensing | No | No |
| Installation | ||
| Venting | Outdoor | Indoor |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 10 years | - |
| Parts warranty | 5 years | - |
