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Welcome back to The Boiler Room. Issue 02 is here with another round of articles, a new product to know about, an industry question worth answering, and the usual nonsense at the bottom. Thanks for reading.
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Featured Article
GP Energy Products • Manufacturer Spotlight
Sellers Manufacturing and the industrial steam applications most boiler reps walk past.
Digesters. Food processing. Manufacturing. Refining. Medical waste. Industrial steam is not a niche market. It is an underserved one. Most boiler reps are set up for commercial heating and stop there. Sellers is built for the applications that come after the commercial line ends, and GP Energy Products represents them across Pennsylvania, New Jersey, Delaware, and Maryland.
The Sellers Single Pass fire tube boiler reaches full capacity steam from a cold start in under 20 minutes. Their product line covers deaerators, boiler feed systems, modular skid packages, and medical waste autoclaves. One manufacturer, one source for the whole boiler room. And they stand behind the product when something goes wrong in a production environment.
Read the Full Article →
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From the Brands
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GP Energy Products
When your boiler goes down, GP Energy's rental fleet goes up.
From 34 HP to 350 HP. Low pressure and high pressure. Hot water and steam. Outdoor units that deploy without a mechanical room. The time to know what is available is before you need it.
Read More →
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Merion Pump
The cooling tower most facility managers ignore until it fails.
Tower Tech builds from FRP composite materials that do not rust, do not corrode, and carry a 30-plus year service life. FM-approved FireStrong models for data center applications. New 2025 closed-circuit models now available.
Read More →
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HX Coils
What a coil that was specified correctly actually looks like in the field.
No callbacks. No field modifications. Startup went the way it was supposed to go. That outcome is not luck. It comes from reviewing the application before fabrication begins. The review is free. The callback is not.
Read More →
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FabPro Systems
What it actually means to say a skid was performance tested before it shipped.
Factory testing is not just running the system. It is verifying pressures, checking controls, confirming alignment, and resolving anything that does not match the spec before the crate is closed.
Read More →
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Ask the Team
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Q
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What is thermal shock and why does it matter when selecting a commercial boiler?
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A
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Thermal shock occurs when cold return water hits a hot boiler vessel, causing rapid and uneven thermal expansion in the metal. Over time that stress cycle fatigues the steel at welds, tube sheets, and combustion chamber joints. It is one of the primary causes of premature boiler failure and one of the least discussed.
The risk is highest in systems where return water temperature drops significantly below boiler operating temperature. Variable flow systems, systems with aggressive reset controls, or applications where load swings rapidly are all in this category.
Sellers Manufacturing's Single Pass fire tube design addresses thermal shock at the vessel level by eliminating the internal dead zones where cold water pools and contacts hot metal surfaces. The result is a boiler that tolerates low return water temperatures and rapid load changes without the stress accumulation that shortens vessel life in conventional designs. If your application involves variable flow or aggressive energy controls, that is worth factoring into your boiler selection conversation. Reach out to the GP Energy team.
Answered by the GP Energy Products team • gpenergyproducts.com
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Product of the Month
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Riello RTC Condensing Boiler
High efficiency condensing boiler 3,000-10,000 MBH • Available through Merion Pump
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Riello RTC Product Photo Placeholder
Upload product image to HubSpot and replace this URL
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Operating Parameters
3,000 to 10,000 MBH input • Up to 160 PSI • Up to 195°F
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Efficiency
94% AHRI thermal efficiency • Up to 98% peak efficiency
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Key Features
10:1 turndown ratio • Zero minimum flow • 316Ti stainless steel heat exchanger • 3-pass fire tube design
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Emissions
Under 30 ppm NOx at all firing rates on natural gas
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Fuel Options
Natural gas, propane, or dual fuel with No. 2 fuel oil backup
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Certifications
ASME Section IV • ETL listed • AHRI certified • LEED qualifying
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Code and Standards Update
EPA Clean Air Act
Industrial boiler MACT rules and what they mean for facilities in our region.
The EPA's National Emission Standards for Hazardous Air Pollutants for industrial, commercial, and institutional boilers, commonly called Boiler MACT, set emission limits for facilities that operate boilers above certain heat input thresholds. Facilities burning coal, oil, biomass, or other non-gas fuels in boilers above 10 million BTU per hour are most directly affected. Compliance requires emissions testing, work practice standards, and in some cases operational changes or equipment upgrades.
If you operate an industrial facility with boilers in that size range and have not recently reviewed your compliance status, this is worth a conversation with your environmental compliance team before your next operating permit renewal. The GP Energy team can help you identify whether your current equipment meets current requirements or whether an upgrade path makes sense.
Source: EPA Boiler MACT • epa.gov • Verify applicability with your environmental compliance team before taking action.
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From the Field
Summer is when deferred maintenance becomes a fall emergency.
Decision-makers are on vacation and boiler rooms are quiet. That makes summer the right time for the maintenance work that nobody wants to schedule during heating season. Tube inspections, burner tune-ups, water treatment review, pump seal replacements, expansion tank checks. The work that gets deferred in February because the building needs heat becomes the emergency call in October when the season starts and something fails. If you have items on the deferred list, the GP Energy and Merion Pump teams are available now. The scheduling window will not stay this open.
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Meet the Team
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Wynn O'Donnell
Service Sales Associate • GP Energy Products Group
Wynn joined the team in September 2025 as Service Sales Associate working under Todd Smith in Service, and has grown quickly into one of the more operationally central people on staff. He handles the bulk of service quoting for Merion Pump, project-manages many of the FabPro jobs, runs the fleet, and keeps every job tracked and every customer in the loop. He has also been building out the service side of GP-One alongside Kevin, a pipeline system tailored to how the team actually works.
Outside the office, Wynn has been a Dungeon Master for five and a half years, runs a weekly D&D game with a small group of friends, and reads a lot of sci-fi and fantasy.
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