VEVOR 8 Gallon Mini-Tank
The cheapest way to 8 gallons of stored hot water. VEVOR publishes no warranty, so it suits a shop or utility sink more than a kitchen.
Amazon $135.90$135.90
The VEVOR 8 Gallon Mini-Tank is the better mini tank water heater overall, rated 3.0 to 2.6. The VEVOR 8 Gallon Mini-Tank leads on value and tank size. The ThermoMate ES700 6.5 Gallon wins on features. The VEVOR 8 Gallon Mini-Tank costs $104.09 less ($135.90 vs $239.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
ThermoMate ES700 6.5 Gallon
A 6.5 gallon plug-in tank with a freeze setting for cabins and garages. GE sells a 6 gallon tank with a much longer warranty for about the same price.
Amazon $239.99$239.99
Which should you buy?
- Choose the VEVOR 8 Gallon Mini-Tank for value ($16.99 per gallon ($135.90, 8 gal) vs $36.92 per gallon ($239.99, 6.5 gal)) and tank size (8 gal tank vs 6.5 gal tank).
- Choose the ThermoMate ES700 6.5 Gallon for features (plugs into an outlet, relief valve included vs relief valve included).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 6 to 10 gallon mini tank water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | VEVOR 8 Gallon Mini-Tank | ThermoMate ES700 6.5 Gallon |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Value 30% | 100 $16.99 per gallon ($135.90, 8 gal) | 33 $36.92 per gallon ($239.99, 6.5 gal) |
| Warranty 30% | 0 warranty not published, scored as none | 17 3-year tank, parts warranty not published |
| Heating power 15% | 20 1,440 W element | 20 1,440 W element |
| Features 15% | 35 relief valve included | 75 plugs into an outlet, relief valve included |
| Tank size 10% | 50 8 gal tank | 12 6.5 gal tank |
Specifications
| VEVOR 8 Gallon Mini-Tank | ThermoMate ES700 6.5 Gallon | |
|---|---|---|
| Heating | ||
| Tank capacity | 8 gal | 6.5 gal |
| Element | 1,440 W | 1,440 W |
| Voltage | 120 V | 120 V |
| Current | - | 12 A |
| Electrical connection | - | Plug-in |
| Thermostat range | up to 145 °F | 50 to 149 °F |
| Price per gallon | $16.99 | $36.92 |
| Installation | ||
| Dimensions (H x W x D) | 15.2 x 18.1 x 18.1 in | 17.7 x 17.7 x 14.6 in |
| Weight | 28.3 lb | 26.5 lb |
| Water connections | - | 1/2" NPT |
| Relief valve included | Yes | Yes |
| Warranty | ||
| Tank | - | 3 years |