Viessmann CU3A-199 Vitocrossal 300 CU3A 199,000 BTU Gas Condensing Boiler

Description

From Plumbing Deals' product listing.

Power Large Loads With Viessmann CU3A-199 Vitocrossal 300 199 MBH Gas Condensing Boiler Heating a big home or light-commercial space with steady, quiet comfort? The Vitocrossal 300 CU3A-199 is a floor-standing hydronic condensing boiler that pairs a high-mass stainless heat exchanger with a modulating MatriX dome burner for 95% AFUE efficiency, flexible venting up to long runs, and dependable day-to-day performance. Brand: Viessmann MPN: CU3A-199 Type: Floor-Standing Gas-Fired Condensing (Heat-Only) Hydronic Boiler Size/Capacity: 43–199 MBH input; Net AHRI 161 MBH; 95% AFUE Material/Finish: Stainless-steel Inox-Crossal heat exchanger; MatriX modulating dome burner Performance: Sound 58 dB (max) / 33 dB (min); condensate up to 2.1 USG/h; boiler water content 18.8 USG Connections/Fit: Heating supply/return 1¼" NPTM; PRV ¾" NPTF; boiler drain 1" NPTM; gas ¾" NPTF; direct-vent; 4" flue / 3" combustion air; venting options support long equivalent lengths (layout-dependent); altitude operation to 10,000 ft (18% de-rate) Dimensions: 61.5" H (67" with control open) × 26" W × 31.5" D Included: Vitotronic outdoor-reset control with outdoor sensor; installation fittings with 30 psig PRV; temperature & pressure gauge (field-installed on supply); pre-wired and internally piped; NG factory-set with field LP conversion Certifications: ENERGY STAR; ANSI Z21.13/CSA 4.9; heat exchanger constructed to ASME Section IV & CSA B51 Warranty: Limited lifetime heat-exchanger warranty (residential); parts up to 5 years with registration—see Viessmann warranty Save Fuel With High Efficiency At 95% AFUE—and up to 98% under low return temperatures—the CU3A-199 turns more of every therm into usable heat, helping trim monthly energy costs. Everyday Performance You Can Feel A broad 43–199 MBH modulation range and high-mass 18.8-gallon water volume reduce short-cycling for smoother, quieter heat across changing loads. Built To Last The Inox-Crossal stainless heat exchanger and MatriX burner are engineered for clean combustion and long service life, with robust ASME/CSA construction. Installer-Friendly Flexibility Coaxial or two-pipe direct venting with long allowable runs simplifies layouts. Standard 1¼" supply/return and ¾" gas connections streamline piping and commissioning. Smart Controls & Compatibility On-board Vitotronic control with outdoor reset and start-up wizard speeds setup and supports multi-circuit designs for efficient everyday operation. Fits Your Space A compact footprint and zero-clearance listing to combustibles enable closet or alcove installs while keeping full front/rear service access.