Why Choose PHD?
Tankless and high-efficiency boilers deliver powerful heating performance with excellent energy savings — a perfect solution for modern homes and properties seeking precise temperature control, reduced fuel usage, and compact installation. At PHD Heating & Cooling, we specialize in professional installation of Navien, Rheem, Bradford White, and Bosch high-efficiency condensing boilers, performed by a licensed and insured HVAC team known for clean workmanship and engineering-level precision.
Navien is the industry leader in high-efficiency condensing boilers and combi systems, offering exceptional reliability, advanced controls, and true premium performance.
Rheem delivers strong efficiency and dependable tankless heating solutions.
Bradford White provides durable American-made systems with excellent longevity.
Bosch offers powerful European-style condensing boilers with compact design and excellent radiant heating performance.
Our installation process includes:
• proper boiler sizing through heat-load calculations
• hydraulic separation and primary/secondary piping (if required)
• circulator pump & zone configuration
• venting and condensate management
• gas line verification & safety testing
• combustion tuning
• air elimination installation
• full performance testing in heating and domestic hot water mode
Unlike large HVAC companies that rush through high-efficiency boiler installs, we take a slow, detailed, methodical approach — ensuring perfect venting, flawless gas setup, clean piping, correct flow rates, and manufacturer-required commissioning.
Every installation is supervised by Dmytro — a PhD in Technical Sciences — guaranteeing engineering-level precision and long-term reliability.
We serve Chicago neighborhoods (West Loop, Lincoln Park, Wicker Park, Lakeview) and suburbs (Elmhurst, Wilmette, Evanston, Glenview, Northbrook, Park Ridge).
Why Choose Us for Tankless / High-Efficiency Boiler Installation / Replacement?
• Licensed & insured boiler installation specialists
• Installation of Navien, Rheem, Bradford White & Bosch
• Clean, detailed, engineering-level workmanship
• Small team → consistent, reliable quality
• Code-compliant venting & gas setup
• OEM components & factory-approved methods
• Free professional estimates
• Same-Day / Next-Day Installation Availability
Upgrade your home’s heating with a high-efficiency tankless boiler professionally installed.
Schedule your free estimate today.
Our Latest Installations
Looking to install a high-efficiency tankless boiler?
We deliver clean, precise installations with proper venting, gas, and and long-term durability.
Enjoy endless hot water and reliable heat with premium setup.