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Scale and corrosion are the two things that destroy boilers, and both are preventable. Scale insulates the heat-transfer surface so you burn more fuel for the same output — and in the worst case causes local overheating. Corrosion, driven mainly by dissolved oxygen, eats the metal from the inside. Gotech doses, tests and documents a programme matched to your boiler, its duty and its feedwater.
A boiler concentrates whatever is in the feedwater, because steam leaves the dissolved solids behind. That makes feedwater quality and blowdown control the two levers that decide whether the boiler stays clean or scales up.
The oxygen problem is separate and more urgent. Dissolved oxygen in feedwater drives pitting corrosion — localised attack that perforates a tube while the rest of the metal looks perfectly healthy. This is why oxygen control, mechanical and chemical, sits at the centre of any serious boiler programme.
A well-treated boiler burns less fuel, lasts longer and is far less likely to fail without warning. Boiler failures are not scheduled events — they take the plant with them, and the records that show the system was properly maintained matter afterwards.
Scale on a boiler is a fuel bill you pay every day. A system fouled with a quarter-inch of limescale can need roughly 40% more energy to heat the same water — that is not a rounding error, it is a permanent tax on operations. Oxygen pitting is worse, because it does not warn you: the tube looks fine until it does not. Both are cheap to prevent and expensive to discover. The real cost of doing nothing puts numbers on the trade-off.
Usually feedwater quality or blowdown control, not the dose. A boiler concentrates whatever comes in; if the feedwater is hard or blowdown is insufficient, the chemistry is fighting an arithmetic problem it cannot win. We look at the whole loop, not just the drum.
Everything. Blowdown is how dissolved solids leave the boiler. Too little and it scales; too much and you are throwing hot treated water — and fuel — down the drain. Getting it right is often the cheapest efficiency improvement available.
Yes — steam and hot water systems, plus closed heating loops. The chemistry and priorities differ, which is exactly why the programme should be designed rather than assumed.
Mainly dissolved oxygen in the feedwater. Oxygen drives pitting corrosion — localised attack that can perforate a tube while the rest of the metal looks healthy — which is why oxygen control, mechanical and chemical, sits at the centre of a serious boiler programme, together with condensate-line protection, because the return line corrodes too.
We will survey it, test the feedwater, and quote a treatment programme.