Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Pipe size to my garage ventless heater 30,000btu

Abonce13 Member Posts: 2
edited November 2017 in Plumbing
So i want to install a ventless heater(30,000btu) in my garage.
My garage is not atached i will need to run about 60ft underground what size should i go with tnx in advance


  • Abonce13
    Abonce13 Member Posts: 2
    Garage heater 30,000btu
  • ratio
    ratio Member Posts: 3,649
    There're tons of tables out there, here's one. This one is for black iron pipe I believe, there're others for CSST, many mfgr's even provide an app that will size their product.

    Note that you must add length for each fitting, and (this is important) this table sizes lines for least pressure drop, meaning an installation that will Just Work. Some tables size gas lines for greatest pressure drop, meaning an installation that will Probably Work in Most Conditions. I'm not a fan of that. It will be, however, cheaper initially.

  • mcfall
    mcfall Member Posts: 13
    gas or lp