Muza Sheet Metal Co. has been helping customers with their make-up air needs for years. From general building ventilation to specific applications we can help make your negative pressures experiences positive.

Make-up air is bringing in filtered tempered air into your building to make-up the losses of the air you are exhausting (kitchen hoods, paint booths, welding booths, dust collection, or general building exhaust fans). We specialize in both direct fired and indirect fired make-up air units. Please call us if you’re STARVING for make-up air.

Starving For Make-up Air

Doors are hard to open

Are outward-opening doors hard to open? Do they slam shut? Are Inward-opening doors hard to close? If so, you need make-up air.

Drafts flow toward exhaust

Cold air flows in and rushes directly toward the exhaust, creating a serious draft problem. Make-up air eliminates drafts!

Smoke in the kitchen

If your kitchen exhaust system isn’t getting enough air to carry away smoke and food odors, it’s starved! Feed it make-up air.

Frigid walls and windows

Starved exhaust systems suck icy outdoor air through cracks in walls and windows. The result: employees and customers suffer.

Fickle flames and pilots

Do downdrafts blow pilots out or cause heater flames to keep changing? They do if your exhaust system isn’t getting enough air.

Leaky walls and roofs

Is rain “sucked” through cracks in walls and windows? Do mysterious leaks appear in roofs? Could be a negative pressure problem!

A forest of chimneys

No chimney can work without air. A forest of chimneys is a sure sign they’re fighting each other for a supply of make-up air.

Burned-out exhaust motors

Exhaust motors should last ten years. If yours have to fight for make-up air, you’ll have to replace them much more often.

Stale locker rooms

Are your locker rooms stale and odorous? Ventilation is essential … but also impossible without make-up air!

Employees out sick

Cold air infiltration makes work stations near doors and outer walls hard to heat. Absenteeism rises when temperature drops!

Fumes and odors

Odors can’t always be avoided, but a healthy exhaust system can get rid of them . . . providing it is fed an adequate supply of make-up air.

Flies can’t stay out

Flies collect at doorways near warmth and food odors. They’re sucked inside by the “negative pressure” when doors are opened.

Poor paint jobs

Uniform paint coverage requires a steady flow of clean air. Backdrafts and fluctuating air flow cause varied coverage and waste.

Corrosion of Steelwork

If structural steel or metal roofing is gradually being consumed by corrosive vapors, the exhaust isn’t working properly.

Dust and debris

Housekeeping is an endless problem! Dust and dirt are drawn in continuously through every opening when the exhaust is operating.

Lazy outlet shutters

Outlet shutters stay half closed when they should be wide open, flutter with the slightest breeze or indoor air pressure change.