THERMIFIC GAS-FIRED HOT WATER BOILERS

Operating Cost Comparsion

The P-K Thermific Boiler vs. a Conventional boiler

The Patterson -Kelley gas-fired, hot water boiler features state-of-the-art design: A radial - fired burner surrounded by a concentric, vertical heat exchanger with integral finned copper tubes. This unique design enables the boiler to operate at an A.G.A. certified thermal efficiency of 85%. The Patterson-Kelley boiler produces the highest thermal efficiency level that a non-condensing gas-fired boiler can achieve.

Model No.	BTUH Output	BTUH Input	BTUH Input @ 75%	Annual Gas Savings*
N-700 N-1000 N-1200 N-1500 N-1700 N-2000	595,000 850,000 1,020,000 1,275,000 1,445,000 1,700,000	700,000 1,000,000 1,200,000 1,500,000 1,700,000 2,000,000	793,333 1,133,000 1,360,000 1,700,000 1,926,667 2,266,666	$1,015 $1,306 $1,741 $2,176 $2,466 $2,756

Whether the Patterson-Kelley boiler is operating continuously or intermittently, it does not produce highly corrosive condensate in the heat exchanger. This prevents maintenance problems and extends the boiler’s service life.

The quality and integrity of the Patterson-Kelley Thermific boiler are backed by over 100 years of Patterson -Kelley heat transfer experience and our solid reputation for producing reliable products.

...IN A COMPLETELY PACKAGE DESIGN...

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The Patterson-Kelley Thermific boiler is completely packaged, including burner and controls, pre-wired and mounted in a totally enclosed cabinet. It is readily installed and requires only five connections: Gas, electric, vent (standard insulated or double-wall "B" vent) and water supply with return.

The boiler is encased inside air-tight double metal walls with air space between them to provide effective insulation. The result is that the outer wall is only slightly warm to the touch. This allows the boiler to be installed on combustible floors.

...WITH A 10-YEAR GUARANTEE...

Patterson-Kelley guarantees the Thermific boiler heat exchanger against thermal shock for TEN YEARS when it is installed as a closed-loop, forced-circulation hot water boiler.

THE SMALL SIZE PRODUCES BIG OUTPUT

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The Patterson-Kelley boiler is so compact that even the largest model can be moved through a 30" doorway. This makes the boiler relatively easy to install. More importantly, these boilers, rated at 2,000,000 Btu, can replace large boilers through the installation of multiple boilers, and significantly increase your seasonal efficiency!

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