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forum threadBabyBubba posted Oct 01, 2025 12:05 PM
forum threadBabyBubba posted Oct 01, 2025 12:05 PM

Biselong 240V 7KW Electric Instant Heat Tankless Water Heater + Free Shipping w/ Prime $13.99

$14

$80

82% off
Woot!
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Woot! has New Biselong 240V 7KW Electric Instant Heat Tankless Water Heater for $13.99. Shipping is free with Amazon Prime, otherwise a flat $6 per order.

1.Instant Hot Water: The 7kW electric tankless water heater supplies instant & endless hot water of 108℉ or higher with no waiting for preheating or temperature fluctuations.
2. Space-Saving Design: 8.54×2.36×13.78inch,This wall-mounted water heater is perfect for saving space with its ultra-thin and compact design, making it installable in even the narrowest of areas!
3. Energy Efficient: The automatic temperature control technology ensures the water heater only operates when you need hot water.
4. Memory Function: Once you set the temperature for the first time, there's no need for further adjustments. Just open the faucet, and the water heater will replicate your previous settings!
5. Safe to Use: Safety is always a top priority for BISELONG water heaters, featuring high-temperature protection, dry burn protection, and electric leakage protection. You can use it with peace of mind. The adoption of water-electricity separation technology prevents electric leakage and pipe corrosion!
6. Important Note: To install the 7kw instantaneous water heater, you require a 240v voltage, a 2×40 double-pole circuit breaker, and 3×12AWG/2 wires. Please ensure to check the circuit breaker before installation!

https://sellout.woot.com/offers/b...lldeals_12
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Deal Details
Community Notes
About the Poster
Woot! has New Biselong 240V 7KW Electric Instant Heat Tankless Water Heater for $13.99. Shipping is free with Amazon Prime, otherwise a flat $6 per order.

1.Instant Hot Water: The 7kW electric tankless water heater supplies instant & endless hot water of 108℉ or higher with no waiting for preheating or temperature fluctuations.
2. Space-Saving Design: 8.54×2.36×13.78inch,This wall-mounted water heater is perfect for saving space with its ultra-thin and compact design, making it installable in even the narrowest of areas!
3. Energy Efficient: The automatic temperature control technology ensures the water heater only operates when you need hot water.
4. Memory Function: Once you set the temperature for the first time, there's no need for further adjustments. Just open the faucet, and the water heater will replicate your previous settings!
5. Safe to Use: Safety is always a top priority for BISELONG water heaters, featuring high-temperature protection, dry burn protection, and electric leakage protection. You can use it with peace of mind. The adoption of water-electricity separation technology prevents electric leakage and pipe corrosion!
6. Important Note: To install the 7kw instantaneous water heater, you require a 240v voltage, a 2×40 double-pole circuit breaker, and 3×12AWG/2 wires. Please ensure to check the circuit breaker before installation!

https://sellout.woot.com/offers/b...lldeals_12

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Oct 01, 2025 02:01 PM
40 Posts
Joined Jul 2025
TealGame1436Oct 01, 2025 02:01 PM
40 Posts
Great price. Keep in mind this is a "Point Of Use" heater, not whole house. This is only enough for a sink and not even a showerhead.
Oct 01, 2025 02:06 PM
810 Posts
Joined Oct 2017
Nguyenksd65Oct 01, 2025 02:06 PM
810 Posts
Does it require any venting?
Oct 01, 2025 02:10 PM
474 Posts
Joined Sep 2017
FullStashMcNashOct 01, 2025 02:10 PM
474 Posts
240v kills it, I don't know of any home with 240v near anything other than their washer and dryer.
1
Oct 01, 2025 06:27 PM
8,371 Posts
Joined Mar 2018
WooHoo2YouOct 01, 2025 06:27 PM
8,371 Posts
Quote from TealGame1436 :
Great price. Keep in mind this is a "Point Of Use" heater, not whole house. This is only enough for a sink and not even a showerhead.
Most shower heads are 2.5 gpm or below (many states topping out at 1.8 gpm for new fixtures) and this appears to be rated at 1.8 gallons per minute so would be doable or at worst case heating the water most of the way to hot (at full volume). Also you could install a low flow shower head or restrictor. If you don't have hot water at your shower already you aren't probably expecting an spa experience to begin with.

Now...getting 240v of electrical next to your shower is an entirely different discussion. Wonder how many people are going to buy this only to be really disappointed when they find out the electrician is going to charge thousands just to run the power?

Seems like this unit was built with Europe in mind and they shipped to the wrong side of the pond by mistake.....photo with the Eiffel Tower in the background kinda solidifies it

https://d3gqasl9vmjfd8.cloudfront...837e4a.png

FWIW, the best use case for this would be a sink or connected to a washing machine (in a country with 240v electrical)
Oct 01, 2025 07:56 PM
265 Posts
Joined Oct 2008
ck90211Oct 01, 2025 07:56 PM
265 Posts
Great price but "important note" about wiring is iffy. 7KW/240 = about 30 Amp. So requiring a double pole 40 Amp breaker is reasonable. But 12 AWG wire for 30 or 40 Amp is risky. You need 10 AWG for 30 Amp and 8 AWG for 40 Amp, and they are getting ridiculously expensive now with copper tariff. I think I will stick with a 120V/1500W with a small tank for my attic sink.

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