Post on 05-May-2018
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Prescriptive Controls• Energy Star Programmable Thermostats
• A thermostat that is able to be programmed to set back temperature to a low setting during times of low use.
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Prescriptive Controls• Boiler reset controls
• A reset control is a device that automatically controls the boiler water temperature based on the outdoor air temperature. Boiler water can run a little cooler the warmer it is outside - saving cost to heat the boiler water, energy savings can be in the 5 % range
• 1 stage
• multi-stage
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Heating Equipment• Boilers
• Steam boilers produce steam for heat or process.
• 82%-85% AFUE is considered high Efficiency for a steam boiler
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Heating Equipment• Hydronic boilers are hot water boilers – most typical
boiler type
• 85% AFUE/Thermal efficiency is considered a high efficient boiler
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Heating Equipment
• Condensing Boilers
• How does a condensing boiler work ?
• Very similar to a hydronic boiler except it is designed
capture even more heat from the flue gases. The flue gases
give up their latent heat, forming condensate.
• Flue Gas temperature of Condensing boiler is 120-140
degrees
• Flue Gas temperature of standard hydronic boiler is 250 to
400 degrees
• High efficiency condensing boilers are 90 % or higher
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Efficiency Improvements for large boilers
Fire Tube boiler with linkage less controls
2-5% Fuel Savings !!!
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Efficiency Improvements for large boilers
Other Measures to think aboutStandard & Condensing Economizers
Blow Down Heat Recovery
Blow Down Controls
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Heating Equipment
• Condensing Unit heaters • Unit heaters are probably the most common piece of
heating equipment in any warehouse type work space
• Condensing Unit heaters work on same principal as
Condensing boilers
• 90 % efficiency is considered high efficiency
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Heating Equipment
• Infared Heaters – 2 types• Low intensity tubular heaters generate radiant heat like the
sun and is absorbed by objects, such as floors and
equipment, this heat then is re-radiated back out to the
surrounding area
• Efficiencies to 90%
• Extremely comfortable heat for warehouses, manufacturing
space, garages etc
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Heating Equipment • Direct fired heaters
• Most frequently associated with make up air units.
• Make air units heat air that is brought into buildings to replace air
that that is loss though air changes, this is especially important in
buildings that purposely exhaust air such as manufacturing
facilities, kitchens, laboratories
• Direct fired heaters are 100% efficient
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Heating Equipment • Furnace
• Instead of heating water like a boiler a furnace heats air which is
then moved by a fan through ductwork
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Domestic Hot Water • Hot water heaters
• Indirect • The source of energy for indirect fired hot water is the boiler,
boiler system water is circulated through a heat exchange
within a well insulated hot water tank
• Very efficient because it eliminates flue gas losses ( no flue)
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Domestic Hot Water
• Hot water heaters• On Demand Tankless Water heater
• as the name suggest, there is no tank and hot water is
produced instantaneously
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Kitchen Equipment• Cooking Equipment
• Commercial Steamer steam cookers
• Commercial Fryer
• This equipment can significantly reduce annual energy
costs compared to standard efficiency units.
• Energy efficient cookers and fryers offer shorter cook
times, higher production rate
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SolarSolar Thermal Hot Water
• Use Solar as the energy to power a indirect hot water
tank
• Usually used in conjunction with a gas boiler
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Incentives for high efficiency equipment
Furnaces, up to $500
Condensing unit heaters, up to $500
Infrared heaters, up to $500
Steam boilers, up to $700
Direct fired heaters, up to $2,000
Hydronic boilers, up to $5,000
Condensing boilers, up to $15,000
Visit www.thinksmartthinkgreen.com for more detail