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Wlshbone 92.5K Views
Dec 30, 2022 7:44 PM

BLACK+DECKER 18kW 3.73GPM Residential Electric Tankless Water Heater

$300

$499

39% off
+ Free Shippingat Home Depot
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Deal Details
Home Depot has BLACK+DECKER 18kW 3.73GPM Residential Electric Tankless Water Heater (BD-18HD) on sale for $299.99. Shipping is free, otherwise select free curbside pickup where available.

Thanks to Community Member Wlshbone for sharing this deal.
  • Note: Availability for pickup may vary.
About this Item:
  • Specially equipped to heat incoming water as low as 37 degrees F at 1.9 GPM
  • Requires two 40 Amp single-phase double-pole breakers, two 8 AWG wires and 240V
  • Easy to use, set-it-and-forget-it digital temperature control
  • Digital control allows you to set temperature in increments of 1 degree F
  • Sleek design saves space, no venting required and installs anywhere inside home or garage
  • Seven year warranty against leakage and two year parts warranty
  • Save up to 50% on electric bills compared to a traditional tank water heater
  • Lead free
  • Durable and corrosion-resistant, stainless-steel interior assembly allows for heating efficiency and longer life expectancy
  • No venting required

Editor's Notes

Written by SaltyOne | Staff
  • About this Deal:
    • Rated 3.6 out of 5 stars from 100 reviews.
  • Refer to the forum thread for additional deal discussion.

Original Post

Written by Wlshbone
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Home Depot has BLACK+DECKER 18kW 3.73GPM Residential Electric Tankless Water Heater (BD-18HD) on sale for $299.99. Shipping is free, otherwise select free curbside pickup where available.

Thanks to Community Member Wlshbone for sharing this deal.
  • Note: Availability for pickup may vary.
About this Item:
  • Specially equipped to heat incoming water as low as 37 degrees F at 1.9 GPM
  • Requires two 40 Amp single-phase double-pole breakers, two 8 AWG wires and 240V
  • Easy to use, set-it-and-forget-it digital temperature control
  • Digital control allows you to set temperature in increments of 1 degree F
  • Sleek design saves space, no venting required and installs anywhere inside home or garage
  • Seven year warranty against leakage and two year parts warranty
  • Save up to 50% on electric bills compared to a traditional tank water heater
  • Lead free
  • Durable and corrosion-resistant, stainless-steel interior assembly allows for heating efficiency and longer life expectancy
  • No venting required

Editor's Notes

Written by SaltyOne | Staff
  • About this Deal:
    • Rated 3.6 out of 5 stars from 100 reviews.
  • Refer to the forum thread for additional deal discussion.

Original Post

Written by Wlshbone

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Top Comments

UltraLazer
1.6KComments
186Reputation
300$ might seem cheap for a water heater, but wait till you see how much the power cables cost, per ft. These things are rarely worth it, and they usually only bring the temp up enough to wash your hands
Go to Comment
produke
3KComments
348Reputation
"Requires two 40 Amp single-phase double-pole breakers"
😱😱😱
Go to Comment
NervousBoundary652
82Comments
22Reputation
FWIW I've installed plug-in point-of-use 110v instant heaters (less than $100 each) in bathrooms and they're great so long as you're not running ridiculously high water pressure it gets the water plenty hot within a few seconds. Plenty of GPM for a low flow shower... probably wouldn't impress if you're trying to fill a tub though. So IMHO if you're going instant water.. better to install per use area (ie:bathroom) vs. the whole house. This also provides redundancy and faster time-to-tap response.
Go to Comment

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145 Comments

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Dec 30, 2022 9:37 PM
1.6K Comments
Joined May 2006
UltraLazerDec 30, 2022 9:37 PM
1.6K Comments

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300$ might seem cheap for a water heater, but wait till you see how much the power cables cost, per ft. These things are rarely worth it, and they usually only bring the temp up enough to wash your hands
5
25
Dec 30, 2022 10:09 PM
3K Comments
Joined Mar 2008
produkeDec 30, 2022 10:09 PM
3K Comments

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"Requires two 40 Amp single-phase double-pole breakers"
😱😱😱
3
3
Dec 30, 2022 10:12 PM
16.3K Comments
Joined Nov 2019
LilylyDec 30, 2022 10:12 PM
16.3K Comments
Quote from produke View quoted comment :
"Requires two 40 Amp single-phase double-pole breakers"
😱😱😱
Plus $399 for professional installation including wires and breakers
1
Original Poster
Dec 31, 2022 12:27 AM
187 Comments
Joined Mar 2008
Wlshbone
Original Poster
Dec 31, 2022 12:27 AM
187 Comments
Quote from UltraLazer View quoted comment :
300$ might seem cheap for a water heater, but wait till you see how much the power cables cost, per ft. These things are rarely worth it, and they usually only bring the temp up enough to wash your hands
Actually its only $150 for each water heater. Many would need professional install no matter what type is installed.
Dec 31, 2022 12:41 AM
1.6K Comments
Joined May 2006

This comment has been rated as unhelpful by Slickdeals users.

Dec 31, 2022 3:40 AM
878 Comments
Joined Jul 2018
Shawndak07Dec 31, 2022 3:40 AM
878 Comments
Quote from UltraLazer View quoted comment :
It needs 3x40A runs using 3x8/2 Romex which is about 2.25$ per foot. And to raise the water temp 65 degrees F, which hot water is 120 F by IRC these days, you only get 2 gallons per minute. Most 1000 sqft homes you might think about using this in, 3x40A=120A which is probably bigger than the panel in your home. You are gonna spend 5000$ installing this 150$ water heater
Says it's 2-40amp.
1
Dec 31, 2022 3:49 AM
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Joined May 2006

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Dec 31, 2022 3:57 AM
82 Comments
Joined Oct 2022
NervousBoundary652Dec 31, 2022 3:57 AM
82 Comments

Our community has rated this post as helpful. If you agree, why not thank

FWIW I've installed plug-in point-of-use 110v instant heaters (less than $100 each) in bathrooms and they're great so long as you're not running ridiculously high water pressure it gets the water plenty hot within a few seconds. Plenty of GPM for a low flow shower... probably wouldn't impress if you're trying to fill a tub though. So IMHO if you're going instant water.. better to install per use area (ie:bathroom) vs. the whole house. This also provides redundancy and faster time-to-tap response.
3
1
Dec 31, 2022 5:38 AM
185 Comments
Joined Apr 2008
Nick0NickDec 31, 2022 5:38 AM
185 Comments
Quote from UltraLazer View quoted comment :
It needs 3x40A runs using 3x8/2 Romex which is about 2.25$ per foot. And to raise the water temp 65 degrees F, which hot water is 120 F by IRC these days, you only get 2 gallons per minute. Most 1000 sqft homes you might think about using this in, 3x40A=120A which is probably bigger than the panel in your home. You are gonna spend 5000$ installing this 150$ water heater
This is wrong on so many levels I don't even know where to begin... hire an electrician if you don't know what your talking about but don't start mouthing nonsense here as if you do.
2
4
Dec 31, 2022 5:53 AM
2K Comments
Joined Jan 2006
QuestorJonesDec 31, 2022 5:53 AM
2K Comments

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Quote from NervousBoundary652 View quoted comment :
FWIW I've installed plug-in point-of-use 110v instant heaters (less than $100 each) in bathrooms and they're great so long as you're not running ridiculously high water pressure it gets the water plenty hot within a few seconds. Plenty of GPM for a low flow shower... probably wouldn't impress if you're trying to fill a tub though. So IMHO if you're going instant water.. better to install per use area (ie:bathroom) vs. the whole house. This also provides redundancy and faster time-to-tap response.
Any particular brand/model/price point you would suggest?
1
Dec 31, 2022 7:45 AM
82 Comments
Joined Oct 2022
NervousBoundary652Dec 31, 2022 7:45 AM
82 Comments

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Quote from QuestorJones View quoted comment :
Any particular brand/model/price point you would suggest?
This noname unit works surprisingly well in bathroom sinks and showerhead applications. It's just plug and play into the outlet and connect hoses.
https://www.amazon.com/gp/product...UTF8&psc=1 It's $71 now, I got them for $45 a while back.
Again, mind the flow rate, you can't expect to run an unrestricted showerhead wide open with such a small unit, but a water saver head + this will go forever with hot water.

This sort of setup is very common in Europe (not recommending this exact unit)
https://www.amazon.com/Electric-T...B08VGRPH9Y
2
3
Original Poster
Dec 31, 2022 1:00 PM
187 Comments
Joined Mar 2008
Wlshbone
Original Poster
Dec 31, 2022 1:00 PM
187 Comments
Quote from UltraLazer View quoted comment :
Nope.
Appears that thumbnail pic.- specs is for the 24kw and 27kw model.
Dec 31, 2022 1:03 PM
2.1K Comments
Joined Mar 2007

This comment has been rated as unhelpful by Slickdeals users.

Dec 31, 2022 3:22 PM
144 Comments
Joined Nov 2006
mrshirlsDec 31, 2022 3:22 PM
144 Comments
Quote from NervousBoundary652 View quoted comment :
This noname unit works surprisingly well in bathroom sinks and showerhead applications. It's just plug and play into the outlet and connect hoses.
https://www.amazon.com/gp/product...UTF8&psc=1 It's $71 now, I got them for $45 a while back.
Again, mind the flow rate, you can't expect to run an unrestricted showerhead wide open with such a small unit, but a water saver head + this will go forever with hot water.

This sort of setup is very common in Europe (not recommending this exact unit)
https://www.amazon.com/Electric-T...B08VGRPH9Y
I am looking for a small unit to heat the water to our humidifier. I'd like to do one of those, but they seem a bit dodgy. 3000w 25-30 amps showing a 15 amp plug in the pictures....

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Dec 31, 2022 3:38 PM
490 Comments
Joined Nov 2011
ssharkDec 31, 2022 3:38 PM
490 Comments
Quote from Nick0Nick View quoted comment :
This is wrong on so many levels I don't even know where to begin... hire an electrician if you don't know what your talking about but don't start mouthing nonsense here as if you do.
Did you look at the installation schematic that he posted? If you are going to be pissed off, at least be informative pissed off kind and educate rest on what really needs to be done.

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