Viscount GTS

This range of pressurised hot water boilers is designed for connecting to a flue pipe which requires a separate automatic fuel-oil or gas burner. The heat output of Viscount GTS boilers range from 754 kW to 1450 kW models.

The cast iron Viscount GTS boiler range is designed to obtain the largest heat exchange surface in the most space efficient size, yet maintain long life and easy servicing. Low modulated temperature operation down to 40°C allows more fuel savings.

Suitable for gas or oil firing, along with dual fuel options provided on selected models. A control panel with comprehensive features is provided.

Efficiency

Features

12 models with outputs 754 to 1450 kW
Fuel flexibility – Natural gas, oil or dual fuel
High efficiency 93% net (84% gross)
3 pass heat exchanger
Compact size

Minimal emissions
Comprehensive control
Easy to install and service
Low temperature return
Striking appearance

Specification

General Data
Dimensions & Clearances
Option Kits

Model		GTS 14	GTS 15	GTS 16	GTS 17	GTS 18	GTS 19	GTS 20	GTS 21	GTS 22	GTS 23	GTS 24	GTS 25
Sections		14	15	16	17	18	19	20	21	22	23	24	25
Output	kW	812	870	928	986	1044	1102	1160	1218	1276	1334	1392	1450
Flow/Return Connections	mm	139.7	139.7	139.7	139.7	159	159	159	159	159	159	159	159
Flue Size	mm	450	450	450	500	500	500	500	500x 700 max
Maximum Working Pressure	bar	6
Water Content	L	655	693	731	769	807	845	905	943	981	1019	1057	1095
Dry Weight (Approx)	kg	3171	3364	3561	3756	3955	4124	4343	4538	4734	4930	5107	5297
Seasonal Efficiency	(gas) %	84.29	84.23	84.91	84.26	84.33	84.55	84.48	84.73	84.53	84.34	84.64	84.97
Seasonal Efficiency	(oil) %	87.70	87.60	88.30	87.60	87.70	87.90	87.90	88.10	87.90	87.70	88.00	88.40

Model		GTS 14	GTS 15	GTS 16	GTS 17	GTS 18	GTS 19	GTS 20	GTS 21	GTS 22	GTS 23	GTS 24	GTS 25
Height	mm	1670
Width	mm	1172
Depth	mm	2105	2245	2355	2445	2555	2645	2845	2955	3045	3155	3245	3355
Boiler Clearances (mm)	Front	1500
	Back	300	436	436	656	656	656	936	936	936	1266	1266	1266
	Side (non hinge)	500
	Right	1200

Flue gas thermometer