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Standard Homebuilders Cabin Heat Box

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Part# 08-04000
MFR Model# DL-001


This cabin heat box has been engineered to be the smoothest, most efficient and lightest heat box built. Fabricated from aircraft-grade aluminum with stainless steel shaft, arm and flapper. Originally designed for use on the popular RV-4 homebuilt, but is applicable to most other designs. Total weight is only 5.2 ounces. Furnished with a gasket flange for the forward side of the firewall for leak-free ducting of warm air to anywhere the builder wants it. Inlet and outlet are 2 inch OD 6061-T4 seamless alum. The body of the box is constructed of 5052-032 alum. The outlet tube extends through the firewall so that scat tubing can be attached to route the warm air. Superior craftsmanship and quality. Over 4,000 sold to date.
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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What are the dimensions of this box (part # 08-04000)? What size of tubing does it require? Is the door arm fixed to one side or can it be moved to either side depending on my installation demands?

Per the supplier: The dimensions on the DL-001 are 2" inlet/outlet OD tubes. 3/8" cable. Firewall mount is 4-1/16" x 3-1/8". Arm extends off the box 3/4" and is fixed. Arm location may be acquired through a custom order. Please contact sales for custom arm location on these heat boxes.

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