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Old 04-04-2019, 07:01 PM   #1
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220v wall mounted heater


Hello...

I want to mount a 220v heater in my kitchen on the wall. It is similar to a mini split heater/ac unit but it is only heat. There is also no compressor or anything.

The bottom of the heater will be 4 feet above the kitchen sink.(Up above the kitchen windows)

I am wondering about GFCI for this. I am reading it is not necessary to GFCI a 220v outlet, and then I am reading that it is necessary when close to water.

I have located a 220v RCD international outlet that would probably work. I have also seen 220v Double pole breakers, but they of course are not cheap.

Also curious about this since there is no neutral so would the GFCI work through the ground?
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Old 04-04-2019, 07:06 PM   #2
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Re: 220v wall mounted heater


Why mount that high? Heat rises, and that is why they are mount close to the floor.
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Old 04-04-2019, 07:14 PM   #3
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Re: 220v wall mounted heater


Heater
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Old 04-04-2019, 08:17 PM   #4
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Re: 220v wall mounted heater


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Heater
Do you have a web site. That look interesting.
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Old 04-04-2019, 08:25 PM   #5
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Re: 220v wall mounted heater


I seen them on ebay under 50 bucks for 2000 watts.

The "air conditioner" part just runs the fan without heat.

Search for wall heater 220v.
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Old 04-04-2019, 09:56 PM   #6
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Random question: is the 220v plug going to be on its own 30amp breaker, and is the wiring to the breaker panel 10 gauge for that circuit? Of so, that's great. If not, you may have some planning ahead of you.

Bear with me if this isn't news for you: Anything over 1800 watts requires its own 30amp breaker. And 30 amp breakers need 10 guage wire to be up to code in North America (using 14 guage for this would be a real fire hazard). If the heater is under 1800watts, then a standard 15amp circuit and 14/2 wire should be fine.

Like I said, random questions/thoughts. Didn't know if that was part of your planning process or not.
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Old 04-04-2019, 10:00 PM   #7
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I couldn't edit ... There are 20amp breakers as well. Which would cover up to 2400watts. 14/2 wire can work with that as long as it's rated for at least 75C/167F
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Old 04-04-2019, 10:28 PM   #8
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Re: 220v wall mounted heater


For 240 volt heaters you can use 14 gauge wire (14-2 Romex) for up to 2880 (15 amps x 80% x 240 volts) watts and 12 gauge for up to 3840 watts.

Good practice has a hard wired (not plug in) appliance that uses more than half the amperage of a branch circuit to have its own branch circuit.

Ground fault circuit interrupters (GFCI; RCD) do not need a ground and need just two hots or just one hot and neutral to function properly. The most up to date code requires the ground.
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Old 04-04-2019, 11:24 PM   #9
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Re: 220v wall mounted heater


I was only going by a watt to amp conversion, and it shows 8.xx amps for a 220 volt circuit, and 16.xx for a 110volt. The heater is 2000 watts, and also has a 1000 watt setting.

I was thinking a 20amp double pole breaker would be ok. I was also going to use 12/2 with ground armorlite wire, and tape the white wire red. I have some of this left over. I also have some 10/3 armorlite with ground I could use.

I don't think this heater has a neutral but I could be mistaken, and if it does I will just use the 10/3 armorlite with ground.

The heater looks like it is direct wired. But I was going to put a GFCI/RCD outlet on it, and wire up a cord since it will be above the sink.

I just don't understand the 220v GFCI/RCD part of it, but If it will work fine with two hots and a ground that is what I was wanting to know.

Here is what I found for the RCD.

Part Number
74900-RCDS
Description:
UNIVERSAL MULTI-CONFIGURATION GFCI (RCD) OUTLET, 20 AMPERE- 250 VOLT, 6mA TRIP, TEST / RESET BUTTONS, INDICATOR LIGHT, 2 POLE-3 WIRE GROUNDING (2P+E), WHITE.
Note: For use on 250 volt (Line to Neutral) Single Phase circuits only. Not for use on 125 volt circuits.
Note: Flush Mount on American 2x4 Wall boxes. Surface mount on # 74225, # 84225-AR Wall boxes or Panel mount.
Note: Protects Downstream Outlets.
Note: Weatherproof horizontal mount cover # 74900-MCS.
Note: Adapter # 30140 provides "Earth" grounding connection when used with European CEE 7/7, CEE 7/4 plugs. Scroll down to view related products.
Standards:
EUROPEAN, INTERNATIONAL
Data Sheet:
Dimensional Data Sheet
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Old 04-05-2019, 12:43 AM   #10
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IMO the better option to me is to use a GFCI breaker instead of piecing a plug together if the unit is supposed to be direct wired. It's also the least amount of connections (less connections means less chance or arcing as the circuit ages) and It'll look better on the wall, too.

It looks like some 20A double pole CFGI's are around $100/$150 at home Depot. I think it's a worthy investment since it'll be there for many years. It also avoids buying something from eBay that may or may not work as expected.
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Old 04-05-2019, 09:37 AM   #11
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Re: 220v wall mounted heater


Quote:
Originally Posted by slipparee View Post
I was only going by a watt to amp conversion, and it shows 8.xx amps for a 220 volt circuit, and 16.xx for a 110volt. The heater is 2000 watts, and also has a 1000 watt setting.

I was thinking a 20amp double pole breaker would be ok. I was also going to use 12/2 with ground armorlite wire, and tape the white wire red. I have some of this left over. I also have some 10/3 armorlite with ground I could use.

I don't think this heater has a neutral but I could be mistaken, and if it does I will just use the 10/3 armorlite with ground.

The heater looks like it is direct wired. But I was going to put a GFCI/RCD outlet on it, and wire up a cord since it will be above the sink.

I just don't understand the 220v GFCI/RCD part of it, but If it will work fine with two hots and a ground that is what I was wanting to know.

Here is what I found for the RCD.

Part Number
74900-RCDS
Description:
UNIVERSAL MULTI-CONFIGURATION GFCI (RCD) OUTLET, 20 AMPERE- 250 VOLT, 6mA TRIP, TEST / RESET BUTTONS, INDICATOR LIGHT, 2 POLE-3 WIRE GROUNDING (2P+E), WHITE.
Note: For use on 250 volt (Line to Neutral) Single Phase circuits only. Not for use on 125 volt circuits.
Note: Flush Mount on American 2x4 Wall boxes. Surface mount on # 74225, # 84225-AR Wall boxes or Panel mount.
Note: Protects Downstream Outlets.
Note: Weatherproof horizontal mount cover # 74900-MCS.
Note: Adapter # 30140 provides "Earth" grounding connection when used with European CEE 7/7, CEE 7/4 plugs. Scroll down to view related products.
Standards:
EUROPEAN, INTERNATIONAL
Data Sheet:
Dimensional Data Sheet

-The "RCD" device is a European standard, not intended for use in the USA / Canada.


-It's designed for 250 volts line to neutral - which is the European utilization voltage. In the US and Canada it's 208-240 volts line to line.


-It's a receptacle with a European plug configuration - an American 240v plug will not fit into it.


A 240 volt hardwired heater would not need GFCI protection in the US.
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