Key takeaways
- For most Timmins owners, running the tub through winter costs less in risk than draining it, even though it costs more in electricity.
- Draining protects against nothing if it's done halfway. A tub drained but not fully purged is more likely to crack a pump than one left running.
- Running costs more on the hydro bill, but the number is usually smaller than people guess, and a good cover controls most of it.
- The tubs worth draining are the ones nobody will use or check on for weeks or months, not the ones in regular weekly use.
- Already decided to drain? The procedure itself matters just as much as the decision, since a rushed drain causes more damage than running it would have.
Every fall, Northern Ontario hot tub owners ask the same question: drain it for winter, or leave it running? Most guides online skip straight to how to drain a hot tub for winter and assume that's the right call. In Timmins, for most owners, it usually isn't. Here's the actual decision, with the trade-offs on both sides, before you commit to either one.
Should you drain a hot tub for winter, or run it?
Run it, in almost every case for a tub in regular use in Timmins. A hot tub built for a Canadian climate is designed to operate through winter, and keeping it heated and circulating protects the plumbing better than an empty shell sitting outside for months. Draining only makes sense if nobody will use or check on it for an extended stretch.
That's the opposite of what most winterizing guides assume. They're written for a tub sitting unused for the whole season, and they jump straight into the drain procedure without asking whether draining is even the right move for your situation.
Why running it through winter is usually the better call
A tub kept warm and circulating all winter faces one real, predictable cost: the electricity to heat it. A drained tub faces a different risk entirely, one that's much harder to see coming: every fitting, jet, and low point in the plumbing that didn't get fully cleared of water. Cold does more damage to standing, still water in a shut-down tub than it does to water that's moving and heated.
Insulation and cover quality change how big that electricity cost actually is. A well-insulated cabinet and a snug, dry cover hold heat far better than a worn or waterlogged one, so two owners running identical tubs can see noticeably different hydro bills. How much electricity a hot tub uses in winter breaks down what actually drives that cost and how to keep it in check.
Running the tub also means you keep using it, which is presumably why you bought one in the first place. A drained tub sitting under a cover from October to April isn't doing anyone any good, and keeping basic water care supplies on hand year-round makes the regular testing that comes with running it a lot less of a chore.
When draining actually makes sense
Draining is the right call if the tub won't be used or checked on for weeks or months, if you're selling the property, or if you're between owners and nobody has taken responsibility for it yet. It's also the right call if the equipment has already failed and running it isn't safe.
If you're traveling for an extended stretch but the tub is otherwise fine, draining still isn't automatic. Arranging for someone to check on it periodically, or setting the tub to a lower "away" temperature rather than shutting it off completely, often protects the plumbing better than a rushed drain before you leave. None of these situations describe a tub in regular weekly use over a Timmins winter, and for that tub, running it almost always beats draining it.
The mistake that causes most winter damage claims
A tub drained but not fully purged is worse off than one left running. Gravity empties the shell, but it doesn't clear every line, jet, and low point in the plumbing, and whatever water is left behind freezes and expands. That's how a pump housing cracks or a fitting splits over winter, and it's the single most common reason for a spring repair call.
If you've already decided to drain, the procedure itself is what determines whether that decision was actually safe. How to winterize a hot tub in Northern Ontario covers the full shutdown, including the blowout step that a half-finished drain skips entirely.
Running it vs. draining it
| Running it through winter | Draining it properly | Draining it and missing a step | |
|---|---|---|---|
| Ongoing cost | Electricity to heat and circulate | Near zero once shut down | Near zero, until the repair bill arrives |
| Effort | Regular water testing and cover checks | One thorough afternoon in fall | Looks identical to doing it right, until spring |
| Main risk | Higher hydro bill in the coldest months | Minimal, if every line is actually cleared | Cracked pump, split fitting, frozen line |
| Best for | Tubs in regular use | Tubs that won't be used or checked for a long stretch | Nobody. This is the outcome to avoid |
FAQ
Is it bad to leave a hot tub off in winter?
Yes, if it's left off with water still inside it. An unheated tub with water in it can freeze, and frozen water expands and cracks plumbing. The only safe "off" state in a Northern Ontario winter is fully drained and purged, not just switched off at the panel.
Does draining a hot tub protect it from freeze damage?
Only if it's done completely. A partial drain that skips blowing out the lines can leave more standing water in isolated spots than the tub had when it was running. Full winterizing, not just opening the drain valve, is what actually protects it.
Is it cheaper to run a hot tub all winter than to drain it?
Often close, and running it frequently wins once you account for the risk of freeze damage from an imperfect drain. The electricity cost is real but predictable and controllable with a good cover. A cracked pump from a rushed drain job isn't predictable at all.
The bottom line
For most owners in Timmins, running the tub through winter costs a predictable amount in electricity and avoids the real risk that comes with draining: a line that didn't get fully cleared. Draining still has its place for a tub nobody will be around to use, but it has to be done completely, or it protects against nothing at all.
Already decided to drain? Get the full shutdown procedure so it's done right the first time. Either way, stock up on water care supplies before the coldest weeks hit.
