Meet the Wallas 3.0Kw Diesel Heater 30GB 12V — a compact, high‑efficiency marine heater designed to warm cabins quickly while keeping power use low. With a 3.0 kW heating output and 12‑volt operation, you get serious warmth without draining your battery, making it ideal for small to mid‑sized boats.

The 30GB model delivers a measured balance of power and efficiency, pushing heat output up to 3 kW while maintaining a low electrical draw for reliable operation even on modest battery banks. In typical use, it sustains comfortable temperatures with minimal fuel burn, helping you reduce running time and fuel consumption on longer trips.

Advanced airflow and quiet operation: a precision laminar flow burner works with a brushless blower to maximize efficiency, improve moisture handling, and keep noise levels comparable to a whisper in a library. This means you can enjoy a warmer cabin without intrusive fan noise or cold drafts seeping in from vents.

Eco-conscious design and future-proof fuels: the 30GB is engineered for today’s diesel blends (EN590) and is ready for future renewable fuels, including HVO and biodiesel blends (B10/B20/B30 EN 16709). Ultra‑low emissions, including CO2 and NOx, help you heat responsibly on the water.

Durable, marine-ready construction: built with stainless steel, high‑grade aluminum, and corrosion‑resistant components, the Wallas 30GB is designed to withstand wet marine environments while delivering consistent performance season after season. The exterior footprint remains compatible with the older 30Dt installations, making upgrades quick and straightforward.

Performance at a glance — what you can expect from the 30GB (12 V, diesel or renewable diesel fuels):

• Power: 1500–3000 W (3.0 kW peak) for fast, even heating
• Operating voltage: 12 V DC
• Fuel consumption: about 0.15–0.30 L/h depending on heat setting
• Air volume: 61–103 m³/h, delivering rapid warmth and improved cabin ventilation
• Electrical draw: designed for low amperage operation to preserve battery life
• Dimensions and weight: 424 mm L × 140 mm W × 277 mm H; approximately 10 kg, floor or wall mounting

Versatile installation and kit contents: the standard package includes the heater, PI Thermo Control Panel, 6 m control wiring, 4 m fuel line, mounting plate and feet, a 4 m power cable with integrated 15 A fuse, and an accessory bag with clamps and screws — all chosen to simplify installation on boats, campers, or trailers.

Designed for real‑world use, Wallas tests every unit before shipping, ensuring you receive a dependable heater that’s ready to install and perform. Whether you’re outfitting a 7–9 m sailboat, a retrofitted camper van, or a compact trailer, the 30GB offers powerful, quiet warmth with a modern, eco‑friendly edge.