One of the concerns we often hear from our clients is how to overcome a lack of humidity in their home. When heating a home with radiators, there’s no systemic way to produce moisture in the house like there is with forced air systems. Adding a humidifier to some or all of your cast iron radiators will add moisture to the air.
A radiator humidifier is a small tube-like product that hangs on the radiator between the sections. All one literally has to do is pour water inside it. The heat of the radiator causes the water to evaporate and adds humidity to the home. Our radiator humidifiers come in both a round or diamond pattern, and can hook on to any radiator because they’re completely adjustable.

Hi! I bought a couple of these from you a while back but I’m not sure how to bend the top part to fit around the radiator. What tool do I use to do that? I’ve been sort of just leaning it against radiator between it and the wall.
Hey Nancy, we usually just bend them with our hands and create a hook almost like a coat hanger and then hang them on the radiator. Hope that helps! If you have trouble let us know.
Hello – I need these radiator humidifier. Can you tell me where I can purchase from my local hardware store
You can order on our website or by phone and we can ship them out to you. These are a product specially designed by us and isn’t sold through any other retailer.
Neat idea – how often do these need to be refilled? And would you typically have one per radiator? More, less?
Hi Chris!
It depends on your home, typically once a week. Most of our client have one per radiator, but if there’s a room that is larger or has a lot of woodwork in it, some people will add a second humidifier. Its best to try a few, you can always add more if needed.