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RBI Manuals & User Guides

RBI, a Mestek company, manufactures high-efficiency commercial and industrial gas boilers, water heaters, and heat transfer equipment for various applications.

Tip: include the full model number printed on your RBI label for the best match.

About RBI manuals on Manuals.plus

RBI, a Mestek company, is a leading manufacturer of high-efficiency commercial and industrial boilers and water heaters. Known for models like the Futera II, FlexCore, and Encore series, RBI provides robust, dependable finned copper tube and stainless steel heat exchangers.

Their equipment is designed to meet the rigorous demands of large-scale heating systems, ensuring maximum efficiency and minimal environmental impact. With a focus on ease of installation and serviceability, RBI products are trusted by heating installers, engineers, and technicians worldwide.

RBI manuals

Latest manuals from manuals+ curated for this brand.

RBI FlexCore Series Water Boiler User Manual

February 24, 2025
FlexCore Series Water Boiler LIMITED WARRANTY The specific company or business unit that manufactured the products purchased (“Manufacturer”) warrants exclusively to the original owner at the original installation site (hereinafter…

RBI Encore Series Water Boiler User Manual

February 24, 2025
Encore Series Water Boiler LIMITED WARRANTY The specific company or business unit that manufactured the products purchased (“Manufacturer”) warrants exclusively to the original owner the original installation site (hereinafter “Owner”)…

HYTROL RB Roller Bed Belt Conveyor Instruction Manual

May 27, 2023
RB Roller Bed Belt Conveyor Instruction Manual Installation and Maintenance Manual with Safety Information and Parts List RECOMMENDED SPARE PARTS HIGHLIGHTED IN GRAY Effective April 2011 (Supersedes April 2009) Model…

RBI HeatNet V3 Color Display Supplement - Firmware 4.15 Guide

Instruction Manual Supplement
This supplement provides detailed menus and descriptions for the HeatNet V3 Color Display system, specifically for firmware version 4.15. Designed for qualified heating installers and technicians, it covers operational information…

RBI Futera II Boiler Specification - MASTER SPEC Document

Technical Specification
Comprehensive specification document for the RBI Futera II Series gas-fired, finned copper water tube boilers. Details product requirements, components, installation procedures, quality assurance, and commissioning for heating applications.

RBI Futera II Water Heater Technical Specification

Technical Specification
This document provides a comprehensive technical specification for the RBI Futera II gas-fired, finned copper water tube water heater, covering general requirements, product details, components, installation, and commissioning procedures.

Dominator 750 Boiler Specifications and Ratings

Technical Specification
Detailed specifications, certified ratings, capacities, and control information for the Dominator 750 boiler and water heater, manufactured by RBI (A Division of Mestek, Inc.). Includes dimensional data, pressure drop, and…

RBI support FAQ

Common questions about manuals, registration, and support for this brand.

  • Where can I find the serial number on my RBI boiler?

    The serial number and crucial specification data are typically located on the rating plate of the boiler or water heater, usually found on the side or front jacket panel.

  • What should I do if my RBI boiler logs a thermal shock warning?

    Ensure that your system is properly installed within a closed loop hot water system. The inlet/outlet temperature differential across the boiler heat exchanger must not exceed the limit specified in your specific product manual (often 60 to 100 degrees F).

  • Are RBI boilers suitable for outdoor installation?

    Yes, many RBI models like the Futera II series are designed for both indoor and outdoor installations. However, outdoor units must be protected from extreme ice and snow accumulation to prevent damage.

  • How often should an RBI boiler be serviced?

    To maintain your original warranty and ensure safe, efficient performance, RBI requires that their boilers are serviced annually by a qualified heating contractor or technician.