Furnace Repair in Hudson, CO

Hudson sits at exactly 5,000 feet, which makes the altitude arithmetic unusually tidy: 3,000 feet above the 2,000-foot rating point, 4% per 1,000 feet, a flat 12.0% derate. A 100,000 BTU/h nameplate furnace inputs 88,000 BTU/h here and an 80,000 BTU/h unit 70,400. That is the smallest derate anywhere we work, and Hudson is also the only Weld County town on this part of our route, with 1,571 residents and open plains in every direction.

Does a 12.0% derate still matter in Hudson?

It does, because the number is applied to input before efficiency, so it compounds. A 100,000 BTU/h furnace at 95% AFUE delivers about 83,600 BTU/h in Hudson against roughly 95,000 for the identical appliance at the rating baseline. Twelve thousand BTU/h of input is a real quantity on a design night, and the multiplier of 0.88 is the correct figure to size against. What Hudson's low elevation does change is the diagnosis: when a furnace here cannot keep up, altitude is a smaller share of the explanation than it would be in the foothills, so the shell, the ducts and the burner setup get more scrutiny.

Why do filters and flame sensors need more attention on the plains?

Hudson sits in open Weld County farmland, and the air carries field dust and crop debris through much of the year. Two consequences follow. Filters load faster than a manufacturer's interval assumes, and a loaded filter drops airflow across the heat exchanger until the high limit opens and the burner short-cycles while the blower runs on. Second, the flame sensor is a rod that must conduct microamps through the flame to prove ignition, and a film of dust or oxide on that rod is enough to break the signal. The burner lights, holds for about seven seconds and shuts down, over and over. Cleaning the rod and verifying the microamp reading resolves it; replacing boards does not. Both faults look identical to a homeowner, since either way the furnace makes noise, tries and quits, so noting how long the burner stayed lit is worth more than any other detail you can give over the phone.

How does Hudson compare with the towns around it?

Closely, which is the point. Lochbuie at 5,020 feet derates 12.1%, Henderson at 5,023 feet the same 12.1%, and Fort Lupton at 4,908 feet drops to 11.6%. Across that whole cluster the spread is half a point, so equipment configuration barely moves between them. The meaningful difference is jurisdictional: Hudson and Fort Lupton are Weld County, Henderson is Adams, and permitting for a furnace replacement follows the county line rather than the elevation.

What should I have ready before calling for no heat in Hudson?

A short drive out to a town of 1,571 people is worth making count, so the more that is known before the truck rolls, the better. Confirm the thermostat is set to heat with fresh batteries, the breaker and service switch are on, the blower door is closed hard against its switch, and the filter is clean. Then watch one full ignition attempt and note what happened: no light at all, a light that drops out after a few seconds, or a burner that runs with no air moving. Those three point at three different parts of the machine, and reporting which one you saw at 720-807-4050 usually means the right part is already on the truck.

Is an older Hudson furnace worth repairing?

Usually. Igniters, flame sensors, capacitors, limit and pressure switches, inducers, gas valves and control boards are all economic repairs on a furnace whose heat exchanger is sound, and the exchanger is the one component that ends the conversation. Age alone is not a verdict. If replacement is the outcome, size the new unit on Hudson's 0.88 altitude factor rather than the old nameplate, and take the opportunity to look at duct sealing in any unconditioned crawlspace, because on open plains ground the building loses more heat to wind-driven infiltration than the derate ever takes from the burner.

Who permits furnace work in Hudson?

Weld County holds jurisdiction for Hudson, so a furnace replacement is permitted through the county while component repairs generally are not permitted work. MoJo Home Services is licensed and insured, family-owned since 2009, and carries the altitude configuration for the 4,900-to-5,100-foot band that Hudson, Fort Lupton and Lochbuie all share.

Where else we work

Nearby and on the same schedule: furnace repair in Lochbuie, furnace repair in Fort Lupton, furnace repair in Henderson.

For the other half of the system, AC repair in Hudson.

Wider view: furnace repair, or everything in Hudson.