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Fan systems for filtering and distributing incoming fresh air to residences while preventing the unwanted introduction of contaminants from depressurization and infiltration. Airflow Regulators are modulating orifices that automatically regulate airflows in duct systems to constant levels. These can be passive or active (powered with sensors) devices. We can answer everything from "how do I measure my filter size" all the way to "do I use a heat recovery ventilator (HRV) or an energy recovery ventilator (ERV), and what does my builder need to know about it.?"

We sell both stock size as well as custom made rectangular grilles and registers as well as stock round registers for both supply and exhaust applications. All of our Dayus grilles are cut to size, aluminum construction, rustproof and only 40% weight versus steel. Powder coated superior painted finish has frames protected by an easily removable polyfilm. Finishes include white, silver, bronze or mill. Linear slot diffusers. Long narrow slots take place of traditional fins. The installation is flush with the wall or ceiling, and the diffuser all but disappears within the natural lines of the structure.

Economical, easy-to-install recirculation systems from AquaMotion, ACT and Laing cut the wait for hot water. Long waits for hot water are more than just irritating - they cost money and waste water and energy. A home with 5 taps can waste up to 15,000 gallons of tempered water down the drain every year. There's a simple and inexpensive way to solve this problem in your existing home or avoid it in your new home: an instant hot water system. The problem of course is that water heated by your water heater sits in the line between the heater and the tap(s) where it cools off.

For most homeowners and contractors it's a missed opportunity, but great ventilation is fundamental to creating a beautiful bathroom environment. Keeping the air fresh and clean - and doing it quietly - makes a huge difference. The common home improvement store bathroom fan just doesn't cut it. In the ventilation business we call them air beaters: they make lots of noise, yet deliver surprisingly little airflow. Option 1 is a high-end all-in-one unit. We offer ceiling mounted fans from S&P as well as Delta Breez.

Dryer Vent Boxes and Couplings for safer and more efficient drying. Using a recessed dryer vent box protects your walls from the heat of the dryer, allows for easier duct attachment, and prevents condensation from building up and creating a spot for mold or mildew. Couplings maintain dryer path and efficiency. We're engineers passionate about home ventilation and serious about customer service - so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.

HRVs (heat recovery ventilators) and ERVs (energy recovery ventilators) used to provide fresh air and improve air quality in modern construction houses. Meet ASHRAE 62.2 in an energy efficient manner! Mass market range hoods generate lots of noise, yet deliver woefully inadequate ventilation. We can help you build a system that makes cooking a joy with sleek looks and pro performance. Stand alone solar air heaters that provide air heating for your home, cottage or business. Air is heated by passing through a collector and pushed by a fan into your home or building.

Residents of hot dry states such as California and Oregon learn to live with the annual fire season. With all the smoke generated by these wildfires you are probably concerned about the long-term health risks of breathing the smoke, and looking for ways to protect yourself or your family. Ash, soot, and other particles in the air can cause irritation to the eyes and lungs and aggravate respiratory issues such as asthma. Even when you stay indoors and close the windows, the fine smoke particles can still make it inside your home.

The single most important thing you can do to keep your air conditioning and heating (HVAC) system working efficiently is to make sure the air filter is clean (washed or changed on a regular basis). Air filters protect the HVAC system components as well as providing benefits such as cleaner air in the home and reduced allergy symptoms. The filter replacement period can vary greatly. It can range from 1 to 3 months for typical homes to every couple of weeks for some businesses where dust is an issue.

Solar air heating is a solar thermal technology in which the energy from the sun's rays is captured by an absorbing panel and used to heat air. The warm air is circulated into the house for heating purposes. It cuts down on your heating costs and as a bonus its a renewable energy technology! Solar air heaters are typically installed on a south facing wall (recommended) or on a sloped roof. The choosen location must get full sun exposure that isn't obstructed by trees, tall buildings or other types of shade.

Whole House Fans are used to cool your house during summer evenings. The fans draw cool fresh air in through open windows while exhausting hot stale air out through attic roof vents. We're engineers passionate about home ventilation and serious about customer service - so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation. Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.

For most homeowners and contractors choice is limited as to what is available from the local supply house and it comes down to either electric/gas/propane heating and a yes or no on a/c. There are however other great options available on the market such as hydronic air handlers. The term hydronic refers to water/fluid circulated through the furnace as the source of heating. Typically water is pumped from your home water heater or boiler to the furnace heating coil. The water then leaves the heater, travels through the hot water circulation pump, and returns to the water heater or boiler.

We are expanding our lineup to include essentials for building a wine cellar. Starting with wine cellar cooling systems and followed by racking system in the near future. Glad you asked. The difference lies in the maintenance of humidity in the conditioned space. Traditional air conditioning units are large capacity and designed to cool the space quickly. This results in low evaporator coil temperatures and removal of humidity which can lead to dried out corks and oxidized wine. Cellar cooling systems are designed to operate for longer periods of time at higher coil temperatures to avoid excessive removal of humidity.

Most attics are designed with enough ventilation so that natural convection currents are enough to ventilate the attic. The purpose of this ventilation is to reduce the attic temperature and less importantly (in colder conditions) to reduce humidity. The electrically powered units require 120VAC power, while the solar powered units generate their own electricity from an included solar electric panel (photovoltaic panel). We're engineers passionate about home ventilation and serious about customer service - so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.

Electric in floor heating provides warmth throughout the whole room, giving a whole new meaning to heating and comfort. Warmup's DCM-PRO System, Heating Mat (StickyMat) and Foil electric floor heating systems use UL approved ultra-thin heating elements, to quickly yet gently heat the floor surface. The heating wire with fluoropolymer coatings is ultra-thin at 1/8″ (3mm), and will not raise floor levels. The DCM-PRO System comes in a minimum heat output of 11W/sqft and its output is variable and determined by the spacing.

HRV's and ERV's recover the thermal energy in an exhaust air stream. If ventilation in a house is required (ASHRAE 62.2), this ventilation air can be expensive to condition. A large amount of the "heat" or "cool" in the outgoing air can be recovered with one of these devices. The HRV/ERV exhausts stale indoor air to the outside, and brings in fresh air from outside. This fresh air is then distributed throughout the home either by the HRV/ERV or by your furnace fan. In the winter, the warm indoor air passes through the HRV/ERV core as its being exhausted and warms up the incoming fresh outside air.

The last thing you need is condensate from a mini split or a/c unit ruining walls or finishes in your house. This is where condensate removal pumps come in: they quietly and reliably move condensate from your minisplit to either a drain or to the outside. The Little Giant line of condensate pumps have models that fall into the "mini pump" category as well as "tank type" pumps. Tank type pumps have a physical tank where condensate is collected and pumped out once a certain level is exceeded. We're engineers passionate about home ventilation and serious about customer service - so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.

For one reason or another many homes have been built with undersized ductwork. Remote rooms that are just plain too hot or cold. What's going on here is that pressurized air (from your furnace, air handler) will take the path of least resistance and not travel to those distant rooms. First rule: Cheap things first! Most furnaces or air handlers have multiple speed connections (taps). Perhaps you can raise fan speed on the unit. If you do have too much airflow on the shorter duct runs, you will need to throttle back that air.

Here's how they work: The whole house fan is mounted between your living space and the attic, and runs in the evening, night-time and morning, when outside air is cool. The whole house fan draws cool fresh air in through open windows while exhausting hot stale air out through attic roof vents. This circulation creates a fresh and comfortable living environment and, importantly, draws heat out of the structure to reduce and delay heat loading for the next day. Traditional whole house fans are big, noisy and difficult to install.

Fantech, S&P, Vortex INLINE fans are in a whole different league compared to the cheap home improvement store air beaters or builder specials. They use commercial motors and techniques to deliver an unbeatable combination of high airflow and low noise. For bathroom applications, a typical inline fan system consists of a grille in the bathroom ceiling (1 or more depending on the CFM of the fan), an inline fan in the attic and a roof or side-wall cap. Insulated flexible ducting is used to connect the grille, fan and cap.