£822.95

TJERNLUND Tjernlund CSA1 Chimney Stack Assist Draft Inducer Fan Kit for Orphaned Water Heaters

CSA1

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Quietly trending down. £65 cheaper than a month ago.

£823 today · £888 a month ago · £921 two months ago

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 71 days • 71 data points (No recent data available)

Historical
Generating forecast...
£935.36 £736.29 £779.73 £823.16 £866.59 £910.02 £953.46 22 February 2026 11 March 2026 29 March 2026 15 April 2026 03 May 2026

Price Distribution

Price distribution over 71 days • 7 price levels

Days at Price
Current Price
12 days 10 days 1 day · current 9 days 12 days 14 days 13 days 0 4 7 11 14 £754 £763 £823 £843 £888 £921 £935 Days at Price

Price Analysis

Most common price: £921 (14 days, 19.7%)

Price range: £754 - £935

Price levels: 7 different prices over 71 days

Description

As a result of upgrades to direct vent condensing furnaces, water heaters are often orphaned and left to vent in chimneys that are oversized after the vent connector from the old furnace is capped. This can lead to condensation and flue gas spillage problems. The CSA1 allows a water heater to be vented through an existing vent connector into an oversized chimney without adding a chimney liner. .

Key Features

Eliminates Need for Chimney Liner When Venting Water Heaters in Oversized Chimneys

Prevent Roof Fall Liabilities

Mechanical assist fan protects against condensation callbacks and flue gas spillage problems

Installing the CSA1 Kit is a one-person job and doesn’t require an electrician

The CSA1 Kit includes a draft hood Linear Limit Safety to lock out the water heater in case of sustained flue gas spillage

Product Specifications

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