Results 1 to 3 of 3

Thread: water heater voltage/power question

  1. #1
    Join Date
    Feb 2012
    Location
    Welland Ontario
    Posts
    434

    Default water heater voltage/power question

    I need to replace the water heater at my cottage. The current unit is 120 volts 1500 watts. The new unit has to be 120 volts. There is no room in the panel to make it 240 volt.
    I am having a problem finding a unit that is 120 volts that is not a tiny under cabinet unit. I am looking a buying a 240 volt unit and either swapping the element to 120v or running it on 120v as is. I know I get 1/4 power out of a 240v unit run on 120v. Now the question. If I get a 4000 watt unit it will give a 1000 watts, but will it get hot enough?
    Operation Overlord.

  2. #2
    Join Date
    Feb 2012
    Location
    Kent, WA
    Posts
    247

    Default

    Eventually yes, but it will take 4 times a long to heat the water than if it were on a 240V circuit. So if normal recovery time is 30 minutes, it will take 2 hours to get back up to temp. You may want to set the temp higher than normal (e.g. 140F) as long as no little kids or uninformed mess around with hot water.
    Mark
    Kent, WA

  3. #3
    Join Date
    Feb 2012
    Location
    Welland Ontario
    Posts
    434

    Default

    Time is not an issue. It is only for shower and sinks. It is only for 4 months in summer. There is no laundry. It is usually only one person. There are seldom guests that stay over night.
    I was just afraid the elements might not get hot enough, being 120v, to heat the tank to temp.
    Operation Overlord.

Similar Threads

  1. what size water heater?
    By chrisb in forum Plumbing
    Replies: 23
    Last Post: 09-26-2018, 02:39 AM
  2. GE Monogram Fridge Water Dispenser Heater install?
    By desney in forum Appliance Repair
    Replies: 13
    Last Post: 06-28-2015, 08:33 PM
  3. GE Side by Side dispenser dead - voltage question
    By texasdoc in forum Appliance Repair
    Replies: 3
    Last Post: 05-22-2015, 07:35 AM
  4. Baseboard heater old wiring question
    By kevmatte in forum Electrical, Residential
    Replies: 11
    Last Post: 12-10-2013, 11:15 AM
  5. Shocking Water Heater
    By 201488 in forum Appliance Repair
    Replies: 4
    Last Post: 11-06-2013, 08:20 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •