Adobe boiler ratings

This loss would otherwise not contribute to the heat load of the building and the selected boiler size could be inadequate. Next we have the IBR Gross Output, which is calculated excluding the boiler jacket losses, but not the piping and pick-up losses. Therefore we would use this output rating when the boiler is located in an unheated space, such as the garage or unheated crawlspace, and the piping or most of it is located within the heated space.

This output should be used for systems where neither the boiler nor the distribution piping is in the heated space, such as a garage, crawlspace or unheated basement. Keep in mind that the deduction of 15 per cent from the IBR Gross Output is used for normal piping systems. Such systems as older cast iron radiator or those with large piping runs may require more than the 15 per cent allocated to these losses. If in doubt you can always calculate the losses from the actual piping system if necessary.

Also, if the boiler manufacturer does not provide this rating just reduce the CSA heating capacity by 15 per cent. Other ratings you will find in manufacturers literature will be efficiency ratings such as combustion efficiency, steady state efficiency and AFUE Annual Fuel Utilization Efficiency.

The lower the exhaust gas temperature and the higher the CO2 content the more efficient the appliance is operating. Next up will be the Steady State Efficiency.

This of course rarely happens in the field and may only be achieved in the laboratory under ideal conditions. Annual Fuel Efficiency Utilization Efficiency or AFUE ratings, is the most important rating when comparing one appliance to another or trying to estimate the seasonal operating costs of the appliance.

This rating is only applied to boilers with an input rating of Mbh or less. This rating is achieved by taking into account all aspects of operation, on-cycle and off-cycle performance and partial load performance, etc. The standard for AFUE values are based on the assumption that the boiler are installed in a heated space of the home eliminating jacket losses, also the boiler capacity is considerably larger 50 to 70 per cent than the actual heating load of the building.

Reduce carbon emissions Heat pumps consume less fossil fuel. This means for 1 unit of electricity, you can generate over 3 - 4 units of heat. Experience Why choose Abode Heat? Trust Our MCS accreditation demands the highest standards of design and installation. We are Which Trusted Trader and Trustmark accredited, for additional peace of mind. The MI series also offers features such as a flame rollout safety shutoff switch, a vent safety shut-off switch, and an option for either a standing pilot or an intermittent ignition.

Standard Honeywell controls are included for facilitated maintenance. The Peerless Series MI gas-fired, cast iron boiler is designed for natural draft use with a conventional chimney.

It is available with spark ignition and features a low-profile design, allowing installation in areas with limited clearance. Other features include easily accessible controls, an electrically operated vent damper, and a boiler reset control with low water cut-off. MI offers a 1-year warranty on defective parts and workmanship on all cast iron boilers. The cast iron sections of the boiler carry a lifetime warranty covering defective parts and labor costs.

Addition labor and parts coverage are offered for an extra fee. The Westinghouse Combi is a modulating condensing gas boiler that combines space heating with an option for domestic hot water capabilities. The Combi Boiler features a stainless steel fire tube heat exchanger for higher efficiency and a ceramic fiber burner for high combustion and low NOx emissions. The Combi offers several safety features including a dual stage anti-freezing mechanism and a gas leak detector that turns off the unit and turns on an alarm in the case of a leak.

The Westinghouse Combi boiler is an environmentally friendly, low NOx system available in wall-mounted and floor-standing models. It is available in LP or natural gas and features a stainless steel heat exchanger with a fire tube design for optimal durability and efficiency. It also features a built-in gas leak detector which shuts off the unit and activates an alarm in the event of a gas leak.

The Westinghouse Combi comes with a year warranty on the heat exchanger and a 5-year parts warranty. It is constructed of flexible GLM cast iron which resists thermal shock during rapid temperature change.

It is designed with a front door and three access plugs to facilitate servicing the unit. The Buderus GWS is an oil-fired cast iron boiler, and it can be configured as a direct vent, or vented through a chimney. This Energy Star certified unit uses a 3-pass flue design to maximize efficiency. The Buderus GWS comes with a 1-year parts warranty, a lifetime heat exchanger warranty that is prorated after the 10th year, and 5-year oil burner warranty.

Labor costs are not covered by the warranty. The units are designed to be vented through a chimney, features cast iron construction, and can be used as part of either a hot water or steam system. The boilers are offered in either fully-packaged or knockdown units. The cast-iron sections are assembled with steel push nipples.

The boilers have an enameled steel jacket that reduces heat loss and a full-swing door for easy servicing. The Buderus G is a cast iron oil-fired boiler with an efficiency of up to It is constructed to be flexible, corrosion-resistant, and designed to resist thermal shock.

The boiler has a full-swing door for facilitated servicing. The Buderus g comes with a 1-year parts warranty, a lifetime heat exchanger warranty, and a 5-year oil burner warranty.

Thank you for letting furnacecompare. A local specialist will contact you shortly. This estimate is based on current data and is not a guaranteed price. For accurate pricing contact a local HVAC pro.

Lennox specializes in innovative technologies that maximize efficiency and minimize noise. For accurate pricing contact a local HVAC dealer. Craftsman Book Comapany, Boiler pricing can vary by the size, style, brand, and efficiency.

Boiler also have minimum efficiency ratings. Standard efficiency boilers in this range are still available, and pricing will reflect the ratings.

For many homeowners who heat their homes with a residential boiler, the efficiency level can be a key factor in determining the best option. Within the home, boilers distribute heated water or steam through radiators or radiant floor systems. Though newer, high-efficiency boilers can reduce fuel costs, they also have some drawbacks which can include more expensive repair costs.

AFUE stands for annual fuel utilization efficiency and measures the ability of the appliance to convert the fuel energy into heat. In other words, it is the measurement of heat output compared to fuel energy input over the course of a year. AFUE takes into account the performance of a boiler when it is operating at partial load or idling.

Another efficiency measure to consider — particularly in regard to commercial boilers — is combustion efficiency. Combustion efficiency is slightly different from AFUE and measures the heat lost up the stack when the boiler has been firing for enough time to reach an equilibrium.

Unlike AFUE, combustion efficiency does not factor in jacket losses or off-cycle losses. Before examining the different components of a boiler, it is helpful to know that higher efficiency boilers typically have electronic ignition to ignite the fuel, fans to control combustible air, and a condensing mechanism to save lost heat from flue gases.

Lower efficiency boilers are typically older, use pilot lights to ignite fuel, and control the flow of combustible air using a natural draft design. When selecting a boiler based on its efficiency, it is important to know whether your boiler has a pilot light or electronic ignition.

Most new models have electronic ignition, while older, less efficient models have a pilot light. Furthermore, since September 1, , newly manufactured gas-fired boilers are not allowed to have a continuously burning pilot light. Pilot lights often need to be relit and can waste a small, but steady flow of fuel over time. Conversely, electronic ignition eliminates the need for a constant fuel supply because it is only used when heat is needed.

Electronic ignition is more efficient than a pilot light, and it is a reliable method to ignite the main burners. Additionally, electronic ignition requires power to operate, while the thermopile and thermocouple provide power to the gas valve in a standing pilot light gas ignition system.

Consequently, if there is a power outage, a boiler that relies on electronic ignition can lose power. However, this can be avoided with a backup battery or generator.

Most new boilers are equipped with electronic ignition, and although these systems are much more efficient, they are also more complicated.

Natural draft boilers have a specific burner assembly that naturally moves the combustion air upward without a fan. Once air from the surrounding room meets the point of combustion in the boiler, the air is heated and thus, has less mass than the surrounding ambient air. This temperature change pushes the combusted air upwards. Natural draft boilers also have natural-drafting chimneys that carry combustion gases out of the home. The height of the chimney and the buoyancy of the gases aid this process, but wind and chimney blockages can often prevent the gases from leaving.