Harsco Industrial Patterson-Kelley was the first copper boiler manufacturer to offer combined propane/natural gas technology. The P-K GEMINI™ dual-fuel boiler with computerized fuel changeover capabilities lets you take advantage of interruptible gas service discounts (where offered) by local gas companies, so you save on fuel costs and receive a fast return on your investment.

While other boiler manufacturers claim to have dual fuel, their boilers actually require burner change-outs or other adjustments. With interruptible service, the P-K GEMINI™ dual fuel boiler practically pays for itself by cutting the price of your gas by as much as 40 percent! For customers who have a requirement of 100 percent standby fuel, the P-K GEMINI™ dual fuel boiler is a perfect solution.

The largest model has a footprint of less than five square feet, making the P-K GEMINI™ dual fuel boiler especially advantageous in replacing large boilers in inaccessible locations. Completely packaged, pre-wired, and mounted in an enclosed cabinet so all you have to do is hook it up and it is ready to go!

Designed to maximize efficiency, the P-K ENVI® control system monitors and modulates the combustion and ignition of the boiler to maintain the desired outlet temperature. This flexible boiler control system can run a single boiler or a master/member network of up to 16 boilers. The lead/lag setup and boiler start rotation ensures run times are equally distributed across each unit in the system, extending the life of the boilers.

P-K ENVI® control is an on-board control system, eliminating the need for external control panels and reducing ancillary component costs. Control both condensing and non-condensing boilers in a hybrid system for maximum efficiency at minimum cost.

P-K ENVI® control system is now available on all P-K MACH® condensing boilers and P-K MODU-FIRE® forced draft (FD) boilers.

Many customers have relied on the P-K MACH® boiler for when they need a condensing boiler that is reliable, efficient and constructed of quality materials. The P-K MACH® condensing boiler is an ideal choice for a wide variety of commercial and industrial building applications, including new construction as well as retrofit projects.

We have recently taken a step to improve on the success of the P-K MACH® boiler with the introduction of the P-K MACH® dual fuel boiler.

The P-K MACH® dual fuel boiler can be easily switched from natural gas to propane, allowing the boiler to run even in emergency situations, which is often a crucial requirement for hospitals and schools. Discounts for interruptible gas service may also be available in your area, allowing you to save extra money.