Can I use a thermal leak detector to diagnose problems with steam traps?

tanandan

I started diving into Holohan's "We've Got Steam Heat" and one thing he suggests if you've got a noisy two-pipe system is to check the proper working order of your traps. The test simply involves testing the temp on either side of the trap to see if there is a marked difference in temperature (10-15 degrees). If there is, the trap is working. If it's not, it's probably letting steam get into your returns.

I was just about to buy one of these: http://www.supplyhouse.com/Mr-PEX-5240748-Strap-On-Pipe-Thermometer-for-3-8-1-5-Pipe-0-248F.

Then I stumbled upon this: http://www.amazon.com/Black-Decker-TLD100-Thermal-Detector/dp/B0044R87BE/ref=cm_cd_ql_qh_dp_t

Does anyone know if a leak detector like that would work? Does it have enough range in terms of its highest measurable temp? Can it sufficiently focus on a very small area of exposed pipe (~1")?

I'm actually worried I won't be able to get one of those strap on thermometers into place given the small amount of exposed pipe between the radiator and traps.

Or does anyone have another way to perform the trap test I described?

Many thanks. This forum has been absolutely amazing as a new home owner and aspiring steam aficionado.

nicholas bonham-carter

A simple IR point and shoot thermometer will do the job. If the outlet piping is too shiny, then you may have to put some dark tape on the pipe to obtain an accurate reading.
Basically, you are looking for excessively high temperatures (steam hot) at the outlet, (trap failed stuck open).
A radiator which is cold, may have a trap stuck shut, not letting the air out, and the steam in.--NBC

tanandan

IR Thermometer it is! Thank you.

nicholas bonham-carter

Some of them are amazingly cheap:
http://t.harborfreight.com/non-contact-pocket-thermometer-93983.html