Heat Timer Corporation

Large heating systems for multi-unit or commercial buildings are designed to heat the building, and then keep temperatures as close to the set-point as possible. To do this using the least amount of energy possible maintaining heating system efficiency is key. Energy efficiency guarantees that the heating system will use the least amount of energy while keeping the building and all its tenants comfortable. Since the amount of heat a building loses to the outside changes considerably as the outdoor conditions change, it makes sense that the heating system should adjust as well. Weather activated heating controls adjust how a heating system functions to meet the heating demands of a building in the most efficient manner possible. Outdoor Air Reset (Outdoor Reset Controls) The most widely used weather activated heating control is commonly known as “Outdoor Reset”. Outdoor reset is really just a sensor that monitors the outside temperature as a way of adjusting the boiler se...

In the United States, commercial energy use accounts for almost 19% of the total energy consumed in the country. At the top of the list are office, retail, educational and healthcare buildings as well as large apartment complexes. One of the most significant opportunities commercial buildings have for reducing their consumption is the implementation of intelligent energy-efficient HVAC control systems . Here’s a quick guide to energy efficiency ratings for commercial heating systems from the commercial heating systems specialists at Heat-Timer®. Energy-Efficiency Regulations for Commercial Heating Systems and Boiler Systems  In heating systems, efficiency is measured by Annual Fuel Utilization Efficiency (AFUE), which measures how effective the equipment is in converting fuel into heat. In a 90% AFUE commercial boiler, for example, 90% of the fuel consumed by the boiler is turned into heat, so the higher the rating, the more energy-efficient the product is. The Department ...

 A tempering valve mixes hot and cold water to create water at the perfect temperature to distribute to sinks and showers. They are typically used in hotels or office buildings, anywhere where there is centralized delivery of hot water. If the water delivered is too warm, scalding can occur. If stored water is too cold, bacterial growth can occur inside the tank. The tempering valve allows hot water to be stored at a high temperature that will kill off bacteria, but then mixes it with cold water to distribute to the fixtures at a lower temperature that will not scald users. Temperature ranges for domestic hot water systems If water is stored below 140℉, bacterial growth can occur that can have serious health risks to building occupants. The most common bacteria is Legionella, which has been known to grow in domestic hot water systems, as well as cooling tower water. In order to kill off any existing bacteria and discourage new growth, water must be stored above 14...