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Hot-Water Heating → Radiant Heating Help Topics

This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.

Recent Articles in Hot-Water Heating → Radiant Heating

Your Body Is A Radiator

Ever been to Ocean City, Maryland? It’s a summertime wonderland, and I was lucky enough years ago to get hired to do a seminar on hydronic radiant heating for a group of ...

Published on 03/03/2021 10:17 AM by Dan Holohan
Posted in Hot-Water Heating
Using Mixing Valves for Radiant Heating

In this excerpt from his Classic Hydronics seminar, Dan Holohan shares his knowledge about mixing low-temperature radiant heating with a higher-temperature hot water heat...

Published on 04/13/2020 2:10 PM by Dan Holohan
Posted in Hot-Water Heating
The Roots of Radiant Heating Seminar

This seminar was filmed on June 5, 2018 as part of the Labor Lecture Series at the General Society of Mechanics and Tradesmen of the City of New York. Radiant heating wit...

Published on 06/06/2018 1:28 PM by Dan Holohan
Posted in Hot-Water Heating
Three Hydronic Radiant Heating Myths

Myth #1: It’s bad for people with heart conditions Here’s what you’ll hear. “Your feet determine your body temperature, just like a thermostat. If the blood leaves your b...

Published on 01/29/2018 10:14 AM by Dan Holohan
Posted in Hot-Water Heating
pex hydronic piping
PEX for Hydronic Distribution Piping

If you were to ask someone with knowledge of the hydronics industry, “What’s the first thing that comes to mind when you hear the words ‘PEX tubing and hydronics’?” chanc...

Published on 02/22/2017 10:01 AM by Jerry Leyte , P.Eng. and MASc.
Posted in Hot-Water Heating
frozen food aisle radiant heating
Grocery Store Radiant

The grocery store is a great place to understand radiant heating (or to explain it to your customer). Stop first in the gadget aisle and pick up a thermometer. It will pr...

Published on 08/31/2016 11:59 AM by Dan Holohan
Posted in Hot-Water Heating
frozen food
Mean Radiant Temperature Explained

I like my coffee black. The Lovely Marianne takes hers with skim milk, no sugar. We were away for a few days last summer, and the morning after we returned, I checked the...

Published on 02/19/2015 4:24 PM by Dan Holohan
Posted in Hot-Water Heating
hardwood floors and radiant heat
Radiant Heat and Wood Floors

More and more radiant systems going into existing homes as retrofit projects. On many of these jobs the tubing winds up getting attached to the underside of the wood floo...

Published on 06/23/2014 10:25 AM by Dan Holohan
Posted in Hot-Water Heating