Water heating

Types of Boilers | HVAC Heating and Cooling

There are many different types of boilers in the boiler room today in a variety of heating applications. There are two main categories of boilers among the different boilers and those two categories are steam boilers and hot water boilers. Either of those categories can be fueled by oil, gas, or electric (although electric is […]

Hot Water Boiler Reset Control | Heating and Cooling

Hot Water Boiler Reset Control Richard, We are looking at replacing our boiler with a new boiler. The HVAC contractor, I suppose he is the salesman for the HVAC contractor, is trying sell us what he refers to as a reset control for our boiler. He tells us it will save us more money by […]

Electronic Ignition Systems and Standing Pilot | Gas Heating

Electronic Ignition Systems and Standing Pilot Modern gas furnaces use electronic ignition systems to light the burners in modern furnaces. One can still purchase a gas furnace or water heater with the old standing pilot ignition systems which have been proven reliable and safe over time but why would someone want to purchase a gas […]

Boiler Stainless Steel Exhaust Flue Stack

Boiler Stainless Steel Exhaust Flue Stack This is a photo of a boiler stainless steel exhaust stack which is used for venting corrosive boiler combustion gases. As the flue gases leave the boiler they cool and depending on the dew point of the gas the gas will experience a change of state from a gas […]

Steam Boilers

Residential and Light Commercial Low Pressure Steam Boilers The residential steam boiler is still alive and well despite the fact that some HVAC professionals refer to it and the steam boiler profession as the dead mans club. However, there are not a lot of HVAC boiler technicians or HVAC companies that specialize in steam boilers […]

Automatic Vent Damper System | Gas Heat Flue Economizer

Automatic Vent Damper System | Gas Heat Flue Economizer The gas flue economizer or automatic vent damper closes off the top of this water heater after the burner finishes the heating process. The automatic flue damper traps heat in the furnace, boiler, or water heater and holds it in and around heat exchanger instead of […]

Air Management in Hydronic Piping Loops

Air Management in Hydronic Piping Loops This is a secondary chilled water pump in a large pump room designated for pumps and piping in a data center. After a few minor tweaks and corrections these pumps all operated flawlessly. There was very little issues with the secondary pump start-ups unlike the primary pumps where cavitation […]

Hot Water Unit Heater Protecting a Mechanical Room

Hot Water Unit Heater Protecting a Mechanical Room Unit heaters are used in various places to protect equipment and provide comfort to occupants. This hot water unit heater provides protection for a mechanical room where there is a large air handler and other associated equipment in the mechanical room. This system is controlled by DDC. A […]

All About Hot Water Heaters | HVAC and Plumbing

All About Hot Water Heaters | Water Heaters with Tanks and Tankless Water Heaters I have been transformed into a believer of tankless water heater systems. Anyone who has read the About Us page at High Performance HVAC along with my friends and family and some fans of the site know that I moved to […]

Boiler Components and Controls – HVAC Hydronics

Boiler Components and Controls – Hot Water Boiler Expansion Tanks Boiler Components and Controls – All hot water boilers must have an expansion tank. Water expands when it is heated and there must be a place for it to expand to so that the pressure in the boiler loop system remains constant. Without an expansion tank […]

Domestic Hot Water Mixing Valve and Domestic Storage Tank

Domestic Hot Water Mixing Valve and Domestic Storage Tank Domestic Hot Water Mixing Valve and Domestic Storage Tank – This domestic hot water mixing valve offers a way to temper the hot water coming from a hot water loop and boiler. It is very important to maintain the appropriate and desirable temperatures of water used […]

HVAC Reznor Heating System | LP Gas Unit Heater

HVAC Reznor Heating System | LP Gas Unit Heater HVAC Reznor Heating System LP Propane Gas Unit Heater – this Reznor unit heater provides heating for warehouses, garages, and other open spaces which can be heated with unit heaters. Unit heaters are ideal for big open areas which need heating without duct work being used […]

What Happens When My Boiler is Flooded

What Happens When My Boiler is Flooded Richard, What Happens When My Boiler is Flooded – Hurricane Irene was a disaster for us as we live in a Northern state that was hit by flooding from the rain of Hurricane Irene. As a result of the loss of power and the flooding our basement was […]

Hot Water Boiler Economizer PreHeater | Energy Efficiency

Hot Water Boiler Economizer PreHeater | Energy Efficiency This is a hot water economizer and is a big preheater for domestic hot water use. This boiler plant serves a large community for heating and domestic hot water use. Domestic hot water is used for showers, washing dishes, laundry, ect, ect, ect…. The cold water supply […]

Gas Boiler Heating System | HVAC Systems

Gas Boiler Heating System | HVAC Systems This gas fired boiler offers good hot water heat for those cold winter days. Hot water heating is very popular and is considered to give the space even heat throughout the space. This hot water gas boiler can also be expected to provide at least thirty years of […]

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