Heat-Timer® Corporation

Summer Heating Activities: Radiator Air Vents

Summer presents an opportunity for commercial building owners to perform all kinds of heating maintenance tasks, without fear of interrupting the comfort of residents. One such activity for single pipe, steam heated buildings is the inspection and replacement of steam radiator vents.

The function of the radiator air vent in a single pipe steam delivery system, is to allow air to be driven out of the radiator as steam enters. At a given pressure, the fill time of a radiator varies proportional to its heat capacity and inversely proportional to the venting capacity of the radiator air vent. It is possible to control the speed at which a radiator will fill with steam by installing a radiator air vent with a certain venting capacity. Used in this manner, radiator air vents are essential in evening out the heat distribution in a building and can make a big difference in the overall efficiency and comfort of a steam based heating solution.

The Heat-Timer® Varivalve is an Industry Standard

The Radiator valve sits right on the radiator which sits right in the apartment of the resident you are trying to keep warm. You could have the most modern, sophisticated and expensive heating system available, but if your $25 radiator valve is defective or not set properly, your tenant may still freeze or be overheated, and your team will get the call.

Heat-Timer® based its steam vent design on studies of the properties of single pipe steam air venting radiator and main line vents of all kinds from all different manufacturers before it created its Varivalve, the most advanced air valve available on the market today.

Our valve is available in both straight and angle versions.

Features that make our valve industry-leading include:

  • Exclusive Fingertip Adjustment: Simply sliding a lever allows you to adjust the venting rate.
  • Each Radiator Has Its Own Venting Speed: In hard to heat areas, the radiator VARIVALVE® can be adjusted for quicker venting. In overheated areas, the VARIVALVE® can be adjusted for slower venting. This allows steam to be evenly distributed in the system.
  • Long Term Fuel Savings: Because Heat-Timer VARIVALVE® vents air more quickly, it takes less time to fill your system with steam. By adjusting the venting to balance the system, there is no need to raise the steam pressure to reach under heated areas. Shorter boiler runtimes and lower pressure results in fuel savings.
  • Replace Valves with VARIVALVES®: Using Heat-Timer adjustable vent rate VARIVALVES® throughout the system allows you to balance the heat to your requirements.

Heat-Timer® Varivalves are available from distributors across the country.

For more information on all our solutions for efficient heating and hot water control in commercial buildings visit https://heat-timer.com