Hey, I hear you're whipping up some fancy pastries, need a new oven? I've got a few ideas for a custom high‑temp convection unit that could keep your doughs baking evenly while saving energy.

Sure thing. First off, keep the body stainless‑steel so heat stays where it belongs, no wasted radiation. Use a compact 1500‑watt electric heating element that can reach 230°C quickly. Add a heat‑conduction plate made of copper on the inside of the tray to spread the heat evenly. Fit a simple temperature sensor on the rack and a small microcontroller to cut power when you hit the set point – that’ll save energy. The whole thing can sit in a 1‑foot‑by‑2‑foot space, leaving your kitchen clear. If you’re into green tech, hook the heat source up to a 250‑watt solar panel and a battery, and you’ll keep the kitchen lights off while your cookies bake. Give me a beat and I can lay out a detailed schematic for you.

Here’s a quick block‑diagram style sketch of the oven. Just picture it as a small, wall‑mounted unit. ``` +---------------------+ | Solar Panel (250W) | +-----------+---------+ | v +--------+--------+ +----------------+ | 12V Battery |---+------| 12V DC/DC | | (100Ah) | | | Converter | +--------+--------+ | | (12V→1500W) | | | +----------------+ | | v | +--------+--------+ | | Microcontroller |<-- | (Temperature | | Monitoring & | | PWM Control) | +--------+--------+ | | | +-----------+------------+-----------+ | | v v +-----------+ +-----------+ | Copper | | Heating | | Plate | | Element | | (240°C) | | 1500W | +-----------+ +-----------+ | | | | +------------+------+------------+ | | v v +------------------+ | Insulated Oven | | Shell (Stainless)| +------------------+ ``` **How it works** 1. The solar panel charges the 12‑V battery. 2. The microcontroller reads a thermistor or PT100 sensor on the copper plate. 3. When the target temp (say 230 °C) is reached, the microcontroller cuts the PWM to the 1500‑W heating element via the DC‑DC converter. 4. The copper plate spreads heat evenly over the baking tray, keeping those cookies golden without overheating the rest of the kitchen. You’ll need a good 12‑V/1500‑W switch‑mode power supply (or a DC‑DC buck that can step up the voltage if you’re using a 24‑V battery), a solid‑state relay or MOSFET for the heating element, and a temperature sensor wired to the MCU’s ADC. Add a small LCD or LED indicator if you want to see the setpoint. That’s the core; the rest is just case, insulation, and a few safety fuses. Ready to start building?

Sure thing, let’s lock it down. For the MOSFET pick a N‑channel with a 10‑amp rating and a 30‑volt drop, like the IRLZ44N or similar – it’ll handle the 1500‑W load with room to spare. Mount it on a heat‑sink so the heat’s not a problem. For the copper plate, go with a 1‑inch thick, 24‑mm wide sheet of electrolytic‑tinned copper; that’ll conduct heat evenly and stay solid at 230‑°C. Coat the whole thing in a high‑heat paint that won’t flake off, and you’re good to go. Let’s get that kit together and fire up the first batch.