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Home » Topics » Market Sectors » Radiant & Hydronics

Radiant & Hydronics
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Talking boiler trends with Ray Wohlfarth.

Boilers: Will they stay or go?

Talking boiler trends with Ray Wohlfarth.
Nicole Krawcke
Nicole Krawcke
February 20, 2023

Plumbing & Mechanical Chief Editor Nicole Krawcke sat down with longtime PM Columnist Ray Wohlfarth, president of Pittsburgh, Pennsylvania-based Fire & Ice, to discuss his experience as a contractor specializing in boilers, what the boiler market looks like today, and what to expect in this space moving forward.


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steam boiler

Dan Holohan: Dry steam is the goal

Things to consider when replacing a steam boiler.
Dan Holohan
Dan Holohan
February 1, 2023

I love all the advances taking place in the world of hydronics, but I’m still seeing plenty of steam systems out there in our older cities, so knowing about dry steam will help you if you’re replacing a steam boiler. The dryer the steam is, the better you’re going to look to your customers.


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hydronic heating system

John Siegenthaler: Adding a heat pump

Several possible approaches.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
January 31, 2023

Many legacy hydronic heating systems use a fossil fuel boiler to supply fin-tube baseboard heat emitters in some areas of a building and lower-temperature radiant panels in other areas. 


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glitch-fix-feature

The Glitch + The Fix: Swapping one “box” for another

January 25, 2023

Given the current prices for fuel oil and propane, and current state and federal incentive programs, many homeowners are asking heating contractors to replace their aging boilers with a geothermal heat pump system.


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desk-typewriter-lamp

Dan Holohan: That seventies show

Learn from the mistakes of the past or we’ll be doomed to repeat them.
Dan Holohan
Dan Holohan
January 4, 2023

I began my career in the HVAC business in 1970 as a truck driver for an AC/refrigeration wholesaler. I stayed there just six weeks because my father — who worked for a manufacturers’ rep — told me there was an opening for a clerk at the rep. It paid $110 a week, which was $10 more than I was getting driving the truck. Plus, I’d get to work with him as my boss.


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hydronic systems

John Siegenthaler: Well-planned hydronic systems last far longer than modern appliances

Lasting value
John Siegenthaler, P.E.
John Siegenthaler, P.E.
January 3, 2023

Although I’ve worked with hydronic heating for four decades and designed systems around just about every possible heat source, I would be hard-pressed to predict what might be available as hydronic heat sources 25 years from now. 


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glitch-fix-feature

The Glitch + The Fix: Plethora of problems

December 26, 2022

Can you spot at least 5 causes for concern among these three photos? If so, what would you do to correct them?


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City

Dan Holohan: The geography of auto-feeders on steam

Auto-feeders — yay or nay?
Dan Holohan
Dan Holohan
December 1, 2022

I have heating (plumbing, fire suppression, etc.) shops in New York and New Jersey. This is very much steam country, and we repair and replace steam boilers and systems all week long and have been for decades. All that is fine, but what I find incredibly odd is the polarized perception of the automatic water feeder.


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Geothermal pipe passages

John Siegenthaler: Geothermal pipe passages

Bringing earth loop piping through poured concrete.
John Siegenthaler, P.E.
John Siegenthaler, P.E.
November 30, 2022

Water-to-water heat pumps, supplied from geothermal earth loops, represent a growing sector of the hydronic heat source market. Most current-generation models can produce water temperatures up to about 125° F, perhaps a little higher if you’re willing to push the compressor operating envelope.


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glitch-fix-feature

The Glitch + The Fix: Indirect bottleneck

November 29, 2022

An installer is asked to provide a 4-ton-rated (48,000 Btu/h) geothermal heat pump system that can provide space heating and domestic hot water.


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