Compare
Universal thermocouple THC-24U vs hot surface igniter IGN-271W
These two parts are not alternatives — they belong to two different generations of furnace ignition, and no appliance can take both. If you are trying to choose between them, the question you actually want answered is which system your unit has.
This comparison isn't one people actually search
We built it because the parts are adjacent, but nobody looks for this match-up — so it's out of search to avoid cluttering results with pages no one wanted. If you landed here, the verdict below still stands.
Verified search demand for this comparison: not yet
Data points: 4 of 2 needed — 3 compared spec attributes, 3 compared price and warranty attributes, live availability on at least one side, 1 linked how-to guide
Titan Pro
THC-24U
$12.25
Titan Pro
IGN-271W
$34.95
These are not the same part — the spec table differs, so the $22.70 price gap is not a saving. Look at your furnace instead: a small flame burning all the time means a thermocouple, and a ceramic element that glows on a call for heat means an igniter. Your unit takes one of these and cannot take the other, so price is not a consideration here at all.
Side by side
| Attribute | Titan Pro | Titan Pro |
|---|---|---|
| What it does | ||
| Function | Proves a standing pilot flame | Lights the burners directly |
| Ignition system | Standing pilot | Hot surface (intermittent) |
| Power | Self-generating, ~25 mV | 120 VAC |
| Warranty, stock and price | ||
| Warranty | 1 year | 2 years — better |
| Availability | 318 in stock | 67 in stock — same Both ship today. The quantities differ because they serve different generations of furnace, not because one outsells the other. |
| Price | $12.25 — better | $34.95 |