- Serving the High Sierra: Truckee, Tahoe Donner, Northstar & Donner Summit We service and repair all furnaces and heaters in the greater Truckee area, including Tahoe Donner. We provide emergency service and will work together with you or your agents to care for your primary or second home. Heat-Tech is owned and operated by Steve & Sandie Davis, long time residents in the area. We are an ...www.heat-tech.com