Energy Upgrade Guide is a reader-supported website. This means we may earn a commission when you click on certain links and make a purchase, sign up for a service, or submit a quote request.
How affiliate relationships work
- Some links on this Site are affiliate links. If you use them, we may receive compensation at no additional cost to you.
- Compensation helps fund our research, writing, and ongoing site operations.
Editorial independence
Our recommendations are based on independent research and evaluation (e.g., product specs, documentation, user feedback patterns, feature comparisons, pricing/value analysis, and publicly available information).
We are not a government agency, municipal utility, or an industry professional (such as an HVAC contractor, electrician, or installer) unless explicitly stated. Any such professional input will be clearly labeled when present.
No sponsored rankings promise
Unless explicitly labeled as “Sponsored,” we do not accept payment to “guarantee” a positive review or a higher ranking. If we publish sponsored content, it will be clearly identified.
Price and availability
Prices and availability can change quickly. Always confirm final pricing and terms on the seller’s website.