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 hydronic hot water loop and boiler. It is very important to maintain the appropriate and desirable temperatures of water used for domestic water use.

First, you want to maintain a safe temperature so people are not scalded by extremely hot water temperatures. Once the temperature is safe it needs to be reliable. Since the boilers operate or are on standby 24/7 - 365, the availability is there to reliably make domestic hot water on demand. (more…)

Hot Water Boiler Economizer PreHeater | Energy Efficiency

Hot Water Boiler Economizer PreHeaterHot Water Boiler Economizer PreHeater | Energy Efficiency - This is a hot water economizer and is a big preheater for domestic hot water use. This hot water boiler plant serves a large community for heating and domestic hot water use. Domestic hot water is used for showers, washing dishes, laundry, etc, etc, etc….

The cold water supply from the city is routed through the economizer to be pre-heated before it goes through a heat exchanger and then the hot water storage tank. (more…)

Commercial Boiler Stack Economizer | HVAC Heating

Commercial Boiler Stack Economizer
Commercial Boiler Stack Economizer - This is not a normal commercial boiler stack in this boiler room. It has a bypass stack for a commercial hot water economizer. All boilers have make-up water to make up for water lost in the systems, especially for domestic hot water use.

An economizer makes things more efficient. In this regard, the economizer utilizes waste heat. Waste heat is normally vented into the atmosphere. This system was specially engineered and tested to ensure the proper operation of the design. (more…)

Liquid to Vapor Propane Evaporators | HVAC Heating

Liquid to Vapor Propane Evaporators

Liquid to Vapor Propane Evaporators

These evaporators serve a large complex where natural gas is unavailable. The complex needed fuel for boilers for heating and domestic hot water so these evaporators were installed too along with two very large LP tanks to handle the heating needs of the complex. As liquid propane (LP) has a specific weight of .504 (where water is 1) and propane vapor has a specific gravity of 1.5 (where the air is 1) making propane vapor 1.5 times heavier than air. (more…)

HVAC Piping Valves | Heating and Cooling Hydronics

HVAC Piping Valves | Heating and Cooling Hydronics - Automatic Flow Valve

Automatic Flow Valve

HVAC Piping Valves | Heating and Cooling Hydronics - Triple Duty Valves are three valves in one as the name implies. Triple Duty Valves act as a check valve, balancing valve, and shut-off valve all in one valve.

From the smallest hydronic loops to the largest hydronic loops triple duty valves are very a popular selection for engineers when designing hydronic loops for chilled water and hot water applications. The triple-duty valve consists of a threaded stem attached to a disc. The disc has a spring that will allow the disc to open when the flow is induced throughout the loop. (more…)

Hot Water Heaters

Hot Water HeatersHot Water Heaters - Domestic hot water heaters make our lives much more comfortable than ever before. Hot water heaters give us hot water for washing our hands, showering, washing dishes, and other uses that would otherwise be uncomfortable without a hot water heater.

When considering hot water heaters beyond the cost of the water things to consider are the size of the hot water heater and the type of fuel it will use to heat the water. (more…)

Boiler Systems Installation | HVAC Heating

Boiler Systems Installation | HVAC Heating

Boiler Systems Installation - It is very important to get it right the first time!

Boiler Systems Installation - Purchasing a boiler can be daunting for most people. Many people do not understand boilers and do not know certain components of boiler systems. Typically they trust the installing contractor to outfit and install the boiler with all the proper boiler components.

That includes making recommendations for optional boiler components that increase efficiency and performance. There are resources you can use to try to understand boiler components such as High Performance HVAC. However, overall, this research or study will not make one an expert in boiler installation. We have to trust the boiler installer and the skills of the contractor.

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