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Madison Innovations

specialty hvac tools · made by hand · USA

The tools
nobody else was going to make.

Madison Innovations is one guy who loves inventing new things, making the specialty tools he wished existed back when he was in the field.

Show me the things →
Who is this guy?

★ Made in USA

★ 2-YR WARRANTY

★ Backed by The Pledge

↓ Four Things in the shop today. More on the way.

THE CATALOG

The Things.

small catalog. every Thing earns its place.

MADISON · INNOVATIONS★ THE PLEDGE ★
MADISON · INNOVATIONS ★ THE PLEDGE ★ EST. 2025

The Madison Innovations Pledge

Tools that work.
Or I make it right.

Tools need to work right every time. If one of mine breaks, send me a picture and tell me how — I'll replace it, and I'll use what went wrong to make the next batch better.

01

Made in the USA

Everything is designed by me. All 3D printed parts are made in-house with USA-made 3D printing filament. I will use USA-manufactured parts and components wherever practical.

02

Right to Repair

Replacement parts will always be available. If I ever stop manufacturing a product or shut my doors, I'll open-source the design files so you (or anyone) can keep them alive.

03

Print your own parts

STL and/or STEP files for printed enclosures are available on request. Customize them, repair them, run a copy through your own printer — go nuts.

04

Built on feedback

I take ideas seriously and refine designs constantly. If you have an idea for a Thing that would make your job easier, send it over.

From the maker

Hi — I’m Tyler.
I make these.

Fifteen years in HVAC: started in building automation then switched to mechanical startup and service (it’s normally the other way around), and now in technical support. By day a tech support hotline and instructor, by night an inventor and maker.

I design every Thing myself, including the electronics, then print it on the machines in my shed-turned-makerspace, test it against real jobs, and ship it myself. It’s just me.

Read the whole story →
VRF Pipe Thing — top view
Ductless Pipe Thing — back
ReliaTel Test Mode Thing — back

While you're here →

I also run vrftools.com — free web utilities for Mitsubishi VRF equipment.

Calculators, lookups, and other utilities I built because the existing tools weren't doing what I needed. Free to use.

Open vrftools.com →

THE WHOLE PITCH

One tech. One shed. Four Things in the catalog.

Designed in the field.

Every Thing started on a job or a tech-support call — a small problem that needed a small tool nobody had made yet.

Printed by hand.

On the printers in my shed. Designs get refined batch over batch; the VRF Pipe Thing is on its ninth revision.

Shipped by me.

From Renton, WA. Every package is packed and labeled by me. Everything is backed by a 1-year warranty.