Russian tortoise stopped eating after heat failure

A failed ceramic heat emitter in winter is genuinely serious for a Russian tortoise — they're cold-blooded, so a sudden temperature drop shuts down their digestion almost immediately, which explains the appetite loss. Getting the right heating back in place quickly is the priority here. Getting heating and UV lighting right is the single most important factor in reptile health — most common illnesses including metabolic bone disease and respiratory infections trace back to incorrect temperatures or lighting. To make sure I point you to exactly the right setup: how old is your tortoise and what size is the enclosure, and what UV lighting do you currently have running alongside the heat source?

Good news on the UV — an Arcadia T5 6% is exactly right for a Russian tortoise, so that side is solid. The issue was almost certainly the cheap ceramic emitter. Budget ceramics run very hot at the element, cycle poorly, and tend to fail without warning — exactly what happened here. For an adult Russian on a 120x60 table, I'd replace it with the Arcadia Deep Heat Projector 50W. It's a completely different technology to a standard ceramic — it emits infrared A and B wavelengths that penetrate tissue the way the sun does, giving a much more natural and even heat rather than just scorching the surface. It also runs cooler on the fitting, lasts significantly longer, and holds a stable temperature far better than cheap ceramics. Pair it with a quality pulse proportional thermostat — the Habistat Pulse Proportional is the reliable choice — and you'll have consistent basking spot temps of around 35°C with an ambient of 20-22°C, which is what she needs to get her digestion moving again.

It varies a bit by individual and how long she was cold, but typically once basking temperatures are consistently correct you'll see appetite return within 3 to 7 days. The key is consistency — she needs to be able to reach a proper basking spot of around 35°C for several hours each day so her core temperature comes up fully and her gut flora restarts. Don't try to tempt her with extra food while she's still cold; it can sit in her gut and ferment rather than digest. Once she's eating again, watch her stools for the first week — they should be firm and well-formed. If appetite hasn't returned within 10 days of correct temperatures, it's worth a vet check just to rule out anything secondary from the cold spell.

The 50W is the right choice for a 120x60 tortoise table indoors. The Deep Heat Projector works differently to ceramics — it doesn't need high wattage to achieve penetrating warmth, and with a pulse thermostat regulating it, the 50W maintains a stable basking spot without the wild temperature swings you get from higher-wattage ceramics cycling on and off. The 80W is better suited to larger vivaria or colder rooms where you're fighting more heat loss. If your room drops below about 15°C overnight, add a low-wattage mat heater under one end of the table rather than upsizing the projector — that way you're not baking her during the day to compensate for cold nights.

That combination will serve her well for years — the Deep Heat Projector in particular is genuinely built to last, which is exactly what you need after a mid-winter failure. Once it's set up, give the thermostat a day to settle and check your basking spot with a temperature gun before she goes back in. Hope she's eating again by the end of the week.