API of New Hampshire

Welcome to API of NH / Delta T.

Since our inception back in 1969, API of NH / Delta T has priced itself on delivering quality services you can depend on and the best value in heating and cooling products.Our belief that our products should be and are sold exclusively through professional heating and cooling contractors has helped us grow into an industry leader throughout New England area. We are a proud Master Distributor of Rheem Manufacturing's premier HVAC product line. As always, thank you for your business!API of NH / Delta T is pleased to introduce the new texting option on our new API Mobile App that is out to all branches. Simply send your question or request to the branches’ main line and receive a quick response from our counter sales team!

Through the API-Delta T mobile app, you will be able to:

• Quickly access troubleshooting information on API of NH products
• Quickly find Rheem, LG, Viessmann, Lochinvar, and many more system parts
• Opt-in to receive special promotional offers and company updates via in-app alerts and text message
• Stay up-to-date on important API of NH events and programs
• Easily locate or contact any of the API of NH Stores

We're ready to help with:

Price checks Available inventoryTechnical questions Delivery detailsWarranty information Lead time information and more!