Commercial Tankless Water Heater Installation

At Ultimate Plumbing Solutions, we specialize in complex commercial plumbing installations, including full-service tankless water heater upgrades. Our experienced plumbing technicians recently completed a comprehensive project involving the removal of an outdated boiler system and the installation of three customer-supplied tankless water heaters in a commercial facility.

Scope of Work

  • Removed existing boiler system.
  • Mounted and configured three tankless water heaters (customer supplied).
  • Piped two 3-inch PVC vents across the ceiling with proper vent terminations.
  • Installed copper piping using ProPress fittings (2", 1 1/2", and 1").
  • Set up gas connections using MegaPress fittings and galvanized piping.
  • Installed isolation valves for all three heaters.
  • Connected a recirculating pump and integrated the existing storage tank into the new hot water lines.

Why Choose Us?

Our team is trained, certified, and experienced in advanced plumbing solutions tailored for commercial settings. We use premium materials, industry-leading tools like ProPress and MegaPress systems, and ensure all installations are safe, efficient, and code-compliant.

Serving Central Florida and Surrounding Areas

Whether you're upgrading your commercial hot water system or replacing a failed boiler, Ultimate Plumbing Solutions is your trusted plumbing partner in Central Florida and the surrounding region.

Contact us today to schedule a consultation or request a quote at (813) 296-2010.

Old commercial boiler unit removed during retrofit

Close-up of the decommissioned commercial boiler system removed during the retrofit process. The outdated on-demand unit shows signs of wear and corrosion, highlighting the need for an upgraded energy-efficient tankless solution.

Old gas line removed

An aged and rusted gas line with a yellow shut-off valve, previously used to supply fuel to the old boiler system. This component was replaced as part of the commercial tankless water heater upgrade to improve safety and compliance.

Old plumbing removed

Corroded pipe system and deteriorating insulation that formed part of the old water heating network. The worn copper and galvanized lines underscore the necessity of a modern plumbing retrofit.

Old copper piping removed

Heavily oxidized copper pipes leading to the base of the previous water heating system. This outdated plumbing was removed to make way for a high-efficiency tankless water heater installation.

New piping and expansion tank

Newly installed copper piping and an expansion tank supporting a commercial tankless water heater system. This clean configuration is part of a modern hot water recirculation solution.

Rinnai tankless heater installation

A neat lineup of Rinnai commercial tankless water heaters with updated gas and water connections. The copper manifold system ensures consistent hot water delivery in high-demand commercial environments.

Copper and PEX lines on tankless heaters

Focused view of the copper and PEX line connections feeding into tankless water heaters. This precise plumbing work is key to the energy-efficient performance of the new on-demand water heating system.

Triple tankless water heater setup

Front-facing photo of a three-unit commercial Rinnai tankless water heater setup. This scalable installation meets heavy hot water usage needs typical in restaurants and hotels.