Heating Coils

Coils are heat-transfer devices – whether they use steam or hot water as a media to transfer heat to an air stream; or whether they use cold water to transfer coolness to an air stream.

Coils come in a variety of sizes, configurations and materials for a variety of uses and with different media within the tubes.

Keystone measures and provides custom-manufactured coils to save you the hassle of a messy coil installation.

How does it work?

Getting a custom built coil from Keystone is easy. Just follow the steps below.

Call or email us to discuss your project requirements and ask us any questions.

Identify the type of coil you have that needs to be replaced. Is it a hot water coil, a steam coil, a glycol mixture coil, a non-freeze coil or a cooling coil?

Use the links to the right to download the appropriate coil worksheet. A Keystone representative may also be available to visit your location and take measurements.

Once you have received your quote, if you are satisfied with the pricing and lead time send us your purchase order. We accept Visa, Mastercard or can establish Net 30 terms with an account.

Your new coil will be built to fit the exact measurements of the coil you are replacing. This means no messy repiping and expensive labour costs are necessary. Take the old one out and slide the new one into place. It’s as easy as that.

The worksheets are provided to make it easier to communicate your requirements to us when you are looking for a quotation on a coil. Please provide us with as much information as possible on the coil you are replacing. Digital photos will also help to determine your requirements.

Available Stock Coils

While we normally supply custom manufacturered coils, we may occasionally have coils in stock. Please contact us for a price.

Coil Fin Straightener

Coil Fin Straighteners

Coil fin straighteners are tools used to straighten the fins on coils that have been in installation and have seen some use. 

They can be efficiently used on coils with 6, 8, 10, 12, 14, and 15 fins per inch.

Coil fin straighteners help coils in two ways. First, they make them look better. Second, they can improve the efficiency. If two fins get stuck together, the surface area used to convey heat is blocked. Coil fin straighterns are an easy fix.

Contact Us

Do you still have questions? Are you looking for pricing information or to place an order?

Do you have questions about coils?

Coils are heat-transfer devices – whether they use steam or hot water as a media to transfer heat to an air stream; or whether they use cold water to transfer coolness to an air stream.

Whether they incorporate copper, steel or aluminum tubing.  Whether they use aluminum or steel fins.  Whether they are fluted or spiral wound.  Whether they are non-freeze style (steam only) or not.  They are all heat-transfer devices.

And eventually, they will corrode or erode and need to be replaced.  As a rule, like should be replaced by like.  If your existing coil uses copper tubing, the replacement coil should use copper tubing.

  • Finned length, height, and width of coil
  • Frame outside dimensions (length, height, width)
  • Fins per inch
  • Diameter of tubes
  • Rows & Columns of tubes (rows x columns = total tubes in coil face)
  • Header diameter
  • Size and type of header connections
  • Same or opposite end connections
  • Dimensions which will locate the piping connections
  • Vertical or horizontal air flow (orientation of the coil)
  • ‘Handing’ of the coil (are the connections on the right or left hand side when facing the coil with the air blowing into your face?)

The upfront cost for a custom fabricated coil will typically be more expensive than purchasing one ‘off the shelf.’ However, this is the case for any custom-made product.

Remember though – when you get your coil custom made you are saving on other costs, such as labour and materials that may be required for costly repiping work. These additional factors can quickly add up to be much more expensive than the dollars that would be saved by purchasing an ‘off the shelf’ coil.

A  custom manufactured coil is designed to be an exact duplicate of the one being replaced. This means you only have to remove the existing coil and replace it with the new one. No extra hassles.