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In a pinch?

We won't keep you long.  MAS has built a very quick, efficient, and hard working team to drastically lower our lead times from the past. Here are the modifications we can provide! 

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ECM Fans

1 week turnaround time

ECM arrays are our fastest install, we can install an array in just hours. It typically takes us anywhere between 4-8 weeks to receive the arrays. Multiple arrays will vary our install time, for example we could do (6) arrays in 2 weeks.

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1 week turnaround time

Indirect Fired (up to 5,000MBH) and Direct Fired (limited options)

It takes us between 3-6 weeks to receive a heater. Once we have the cabinet and heater, we can install and ship within a week. Each additional heater will add a few business days to lead time.

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1 week turnaround time

Finned tubular, open coil, SCR, higher KAIC ratings

It takes us 3-4 weeks to receive a heater. We can install and turn around in 1 week. Each additional heater will add a day or two to lead time.

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2-3 week turnaround time

Enthalpy plates, sensible plates, wheels, heat pipes

In general, we can build a single ERV (indoor or outdoor, any type of heat exchanger) in 1-2 weeks.  These are really popular modifications for us as we can configure these units as standard with zero specials.

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2 week turnaround time

Wrap around and side-by-side, passive and controllable.


It takes us 6-10 weeks to receive a heat pipe. We can install and turn around in 1 week. Each additional heat pipe will add a day or two to lead time.

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2 week turnaround time

Various options on direct drive plenum fans, including explosion proof motors.  Takes us roughly 4-6 weeks to receive our components (8 weeks for explosion proof).

What is MAS best at?

Providing solutions that standard manufacturers can't build, and custom manufacturers are too expensive for.

High CFM ERVs, shortening units, and building fast are what we focus on.

What does MAS provide for selections?

Full unit drawings (2D CAD), revised .DTI file fully configured for ordering, technical data/submittals, and pricing.

What do I need to send you?

For simple mods, your .DTI file and/or a schedule.

For custom ERVs, we'll build the file for you! Just let us know your dimensional constraints and required performance.

What is MAS not best at?

Low CFM units. Our labor and freight do not scale well on a $/CFM basis at lower CFMs

Will you modify anything other than Vision/Skyline?

Not yet.

When should I use MAS?

We'll let you know up front if we are a good fit. Our #1 goal is to find you the best solution, and that is sometimes sticking with a standard offering. We are here to help you create solutions that will give you an advantage without going custom.

Frequently Asked Questions

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