Bowl with built-in heater for Provap

01 · DIAGNOSIS

White residue is the sign, but it does not say which part

If the unit is slow to reach temperature, sublimates unevenly or leaves white unsublimated residue, what is happening is that it is not getting up to working temperature. That points at two different parts: the thermostat, which regulates it, or this assembly, which generates and transmits it. The practical way to tell them apart: if the unit heats but falls short or runs in fits and starts, suspect the thermostat; if it does not start at all, or the bowl is visibly worn, it is the bowl-and-element assembly.

02 · WHY COPPER

It spreads heat across the whole base, not at one point

The bowl is copper, which conducts heat far better than steel: the dose heats evenly instead of scorching at the contact point and staying cold at the edges. That is what gives a fine cloud and a dose that vaporises completely. A worn or distorted bowl spreads it worse, and that is where half-finished sublimations start.

03 · MAINTENANCE

A clean bowl lasts; a crusted one does not

The residue that builds up in the base acts as an insulator: each layer means the next dose gets less heat, and the assembly works harder to compensate. Cleaning the bowl at the end of the day is not cosmetic, it is what separates a spare that lasts seasons from one replaced every year.

04 · BEFORE YOU BUY

Check your model before ordering: it is made for PROVAP 110 and 220. And a point of vocabulary that causes confusion: where we say resistance, we mean the heating element, not a passive electrical component. And it arrives ready assembled: bowl and heating element are a single part, not two to be joined, so there are no holes or screws to look for.