It is the best wood boiler anywhere because it has a BUILT-IN HEAT EXCHANGER to heat your domestic hot water, so you do not need to purchase an external heat exchanger to mount on your hot water heater, such as side-arm or plate exchanger because it is included with your purchase of this boiler and works phenomenally well!This saves you about $300.00 and you don't need an anti-scald valve!Learn More
The only new-capacity pulverized-coal-fired power plant under contract in the U.S., the project is completed in 2003, ahead of schedule and under budget. B&W completes a 550 MW boiler replacement in world-record time – less than 22 months – and two large SCRs for a major Northeastern U.S. utility. B&W Vølund acquires DynaGrate® technology.Learn More
Nov 07, 2016 · Indirect-fired units may use different sources for heat: hot water or steam from a boiler, steam from district heating, or waste heat in the form of water, air, or other gas. Absorption chillers can be single-effect or double-effect, where one or two vapor generators are used.Learn More
May 31, 2016 · This boiler includes a domestic hot water coil, allowing the boiler to act as a tankless hot water heater as well as a hydronic boiler. Condensing Technology Improves Efficiency The ZWB42-3 is a condensing boiler, using the leftover energy in the boiler's flue exhaust to further heat your home.Learn More
Modulating flame boilers have a minimum turn-down ratio, below which the boiler cycles off. This ratio is 25% for most boilers, but some can be turned down to as low as 10%. 2. Step-fired—The heat input to the boiler changes in steps, usually high/low/off.Learn More
Minimum efficiency requirements for boilers cover all capacities of packaged boilers. Maximum capacity — minimum and maximum ratings as provided for and allowed by the unit's controls. Includes oil-fired (residual). E c = Combustion efficiency (100 percent less flue losses). E t = Thermal efficiency. See referenced standard for detailed Learn More