Practical alternatives to air conditioning: passive cooling, fans, shading, evaporative systems and DIY tips to stay comfortable, while cutting energy and costs.

Learn how to choose the most efficient window air conditioner - compare EER, CEER, size, features, installation & maintenance to cut energy use and lower bills.

Find the best window air conditioner for efficient cooling: size by BTU, choose Energy Star, low-noise models, smart features, and installation tips.

Practical guide to energy-efficient HVAC design & operation: right-sizing, envelope upgrades, efficient components, controls and maintenance to cut bills, today

Learn why Lennox air conditioner prices vary, what affects MSRP vs installed cost, typical price ranges, and tips to compare quotes, incentives, and financing.

Energy-efficient portable AC buying guide: sizing, CEER/EER, cost estimates, features, installation tips, noise, maintenance, efficiency and smart buying advice

Choose, size, install, and maintain energy-efficient window air conditioners for comfort and lower bills. Practical tips, calculations, and buying advice. Guide.

Learn why central air conditioner prices vary - unit size, SEER, labor, ducts, permits, brand and rebates - and how to compare accurate quotes.

Pure Plumbing & Air Ductless Mini-Split review: Las Vegas installer offers energy efficient room-by-room heating/cooling, financing, maintenance & 24/7 service.