FuelAccessories / Spares

Fuel tank lids and caps aren't universal — thread sizes and neck diameters vary between manufacturers such as Titan, Harlequin and Deso, and between older and newer tank models. Measure the neck opening and check for any moulded part numbers before ordering, and if you're unsure, our team can help match it from a photo or the tank's age and make. Fitting a poorly matched lid risks a weak seal, letting in water or debris.

Most domestic oil tank alarms are battery-powered, self-contained units that bolt straight onto the tank top or float gauge fitting, so no electrical qualification is needed. Wired or BMS-linked alarms for larger commercial installations may need a competent installer, but this is the exception rather than the rule. Always check the battery periodically, as this is the most common reason for a false sense of security.

Mechanical (float-based) indicators give a visual reading through a sight gauge on top of the tank and need no power source, making them a reliable, low-maintenance choice for most home heating oil tanks. Electronic indicators use a sensor to send remote readings to a display or app, useful where the tank is hard to access or you want to monitor levels without going outside. Both need to be matched to your tank's depth for an accurate reading.

A typical outlet kit includes the outlet fitting, a fire valve (where required), sealing washers and connecting pipework to link the tank to your boiler feed. Outlet position and thread size differ between bunded and single-skin tanks, so check your tank's outlet spec, usually 1/2" or 3/4" BSP, before ordering. Fitting should always maintain the tank manufacturer's warranty conditions and comply with OFTEC installation guidance.

A ball valve lets you shut off fuel flow manually at the tank, which is essential for isolating supply during boiler servicing, pipework repairs or in an emergency. It's a straightforward addition to most outlet kits and, unlike a fire valve, gives you direct control rather than automatic shut-off. We'd recommend one on any installation where the tank feed isn't easily isolated elsewhere.

Most lids, caps, alarms and level indicators in this range are suitable for heating oil, kerosene and diesel storage tanks alike, as the fittings and thread standards are common across fuel types. It's the tank construction — bunded or single-skin, above or below ground — that dictates the exact outlet and cap fitting rather than the fuel itself. If you're at all unsure which spare matches your setup, send us the tank make and model and we'll confirm compatibility before you order.