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  1. #1

    Changing Cast Iron rads to Stelrads ( european style rads)

    I am thinking of changing all my cast Iron rads in the house to Stelrad rads.

    It is my understanding that in doing so, the water temperature needs to also be increased, but I am unsure as to what is the correct temp.

    If anyone can chime in on the topic it would be great.

    Also does anyone know the formula to calculate the BTU/h of cast iron rads? In doing so it would help me figure out what size Stelrad i should be buying to get the same btu/h as the cast iron ones.

    Essentially how does one calculate the correct size stelrad to purchase to replace a cast iron rad ?

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,929
    That would be what your contractor does for you.
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    How many times must one fix something before it is fixed?

  3. #3
    Quote Originally Posted by beenthere View Post
    That would be what your contractor does for you.
    Yup aware of that and actually he just left my house Basically I wanted to do my own research and make sure I am not getting ripped off. HVAC contractors are a dime a dozen here, and all are looking to make a buck. He says he has to work out the math to best size the rads, as it makes more sense then to replace based on the current rad btus.

    He seemed pretty knowledgeable which is always a good sign.

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,929
    He is correct.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

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