The unusually warm winter in North America has cut everyone's heating costs this year - but the biggest winners by far are homeowners heating with high efficiency condensing hydronic heating systems. The two features of condensing boilers that contribute to these large savings are Modulation and Outdoor Reset.
Modulation is the process that increases or decreases the heat output, or firing rate, of the boiler. Just like your kitchen stove, a modulating boiler can adjust its heat output but it doesn't need a person there to make the adjustment. The boiler's control monitors the heat absorbed by the house by measuring the temperature of the boiler water as it leaves and as it returns to the boiler. The larger the temperature difference, the more heat the boiler must add to the water, and the higher the firing rate that the control will create.
Non-modulating boilers operate at full fire all of the time. This is inefficient for two reasons. First, the boiler is least efficient at full fire, and most efficient at low fire. So the longer the boiler can run at low fire, the more efficient it is. Second, each time the boiler starts and stops it loses efficiency. Modulating boilers run longer at lower temperatures, minimizing the starts and stops.
Outdoor reset is a simple yet extremely important part of a high efficiency system. An outdoor sensor tells the boiler's control what the temperature is outside. The boiler uses this information to adjust the temperature of the water that the boiler supplies to the radiant emitters. This supply water does not need to be as hot during warm weather as it does during cold weather. By supplying lower temperature water to the system, the boiler can maximize its efficiency. Click here for outdoor reset basics.
Triangle Tube provides three models of condensing boilers. The Prestige models feature a stainless steel fire tube heat exchanger with a full featured TriMax control and are available from 60 to 399 MBH. The Prestige Excellence provides heat and up to 180 gallons per hour of hot water from its indirect water heater. The Challenger models are available for both heating only (Solo), and combination heat and hot water (Combi) applications. Challenger boilers are sized from 85 MBH to 150 MBH. The Keystone models feature a stainless steel water tube heat exchanger and are available in sizes from 399 to 850 MBH for larger residences and light commercial applications.
Contact Triangle Tube today for more information.


When the Anchorage Housing Authority approached Bittner Plumbing and Heating to upgrade the heat and hot water for their 44 unit apartment building, they wanted a system that would be efficient and reliable. Paul Bittner of Bittner Plumbing and Heating worked with Mark Herrington at Heating and Ventilation sales to design in a Triangle Tube Prestige Cascade boiler system with Smart Indirect Water heaters to do the job.










Dave Yates of F.W. Behler is a contractor that is determined to provide his customers with the highest efficiency and most reliable hydronic heating solutions. His latest project at St. Paul's Church in Dallastown, Pa is a terrific example of how the latest energy efficient products can both improve the comfort level in the church while minimizing its natural gas and electricity costs.


Maxi-Flo Pool and Spa Heat Exchangers are available in stainless steel and titanium for long life. The titanium models are built specifically for use in salt water pools and spas. They are available in several sizes to handle any size pool. By working with a natural gas or propane boiler like the Prestige or Challenger, they can be sure to heat your pool much quicker than heat pump pool heaters.


If a seperate hot water heater is desired, Triangle Tube's
In addition to radiators and baseboards, radiant floor heating systems have become very popular in recent years. Radiant floor systems circulate hot water through tubes that are attached or embedded under the floor. Radiant floor heating delivers heat where it is most needed, at the coldest part of the room. Hidden underneath the floor, it is invisible and allows the maximum freedom in furniture placement. Radiant floor heating can be used under carpeting, wood floors, tile, or even embedded in concrete slabs.
The heart of the hydronic heating system is the boiler. While traditional boilers were large objects consuming space in the basement, the modern high efficiency boiler is more compact and much more efficient. Modern boilers such as Triangle Tube’s