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Articles & Guides
Practical advice, servicing, energy savings and fuel comparisons: our articles to help you understand your heating.
One radiator stays lukewarm while the others heat up fine: hydraulic balancing explained
In a multi-storey Brussels home, it's not unusual for one radiator to stay stubbornly cool while all the others are working perfectly well. This classic symptom is almost always down to hydraulic imbalance, a fine-tuned setting that drifts over time and that DPS Chauffagiste is here to help you understand.
4 October 2026 · 7 min read
Breakdowns & repairsYour boiler's safety valve keeps dripping: should you worry?
A small trickle of water under the boiler often puzzles Brussels households. We explain what the safety valve does and how to tell normal weeping from a leak that needs attention.
3 October 2026 · 7 min read
Servicing & obligationsLegionella in hot water tanks in Brussels: the maintenance habits that protect you
Legionella is often a source of worry whenever hot water tanks come up in conversation, but the risk is easy to manage with a few simple adjustments. DPS Chauffagiste looks at the conditions that favour this bacteria and the maintenance habits that help you guard against it with peace of mind.
2 October 2026 · 6 min read
Breakdowns & repairsBoiler giving off steam or white smoke on start-up: should you worry?
A plume of white vapour escaping from your boiler's flue in cold weather is, in most cases, simply a perfectly normal condensation phenomenon. We explain how to tell it apart from the signs that should genuinely alert you.
1 October 2026 · 7 min read
Breakdowns & repairsThe Boiler Circulator Pump Sticking After Summer: An Easy Symptom to Spot in Brussels
Every autumn, Brussels homeowners switch their boiler back on and find that the radiators stay cold despite the burner running. Often, the culprit is the circulator pump, left standing still all summer. Here's how to recognise this symptom and why it deserves proper attention during servicing.
29 September 2026 · 6 min read
Breakdowns & repairsBoiler dripping coloured water: what the condensate colour reveals
A condensing boiler normally drains off acidic, colourless water. When this liquid turns brownish, yellowish or rusty, it's sending a signal that's worth understanding before you call a heating engineer. Here's how to describe the situation precisely over the phone.
28 September 2026 · 7 min read
Install or replaceCast-iron radiators in older Brussels homes: keep them with a new boiler or a heat pump?
Many older Brussels homes have kept their original cast-iron radiators, prized for their heat retention and their look. We explain when they remain perfectly compatible with a modern boiler or a heat pump, and when partial replacement is needed to preserve the system's efficiency.
27 September 2026 · 7 min read
Breakdowns & repairsSharp bang or clunk when the boiler starts up cold: normal expansion or a sign of wear?
A metallic clunk just as the boiler fires up on a cold morning worries many Brussels homeowners. We explain how to tell normal thermal expansion of the components apart from a sign of wear that deserves a technician's attention.
25 September 2026 · 7 min read
Servicing & obligationsBoiler servicing in Brussels: is it the tenant's or the landlord's responsibility?
Between the standard lease, legal safety obligations and each agency's own habits, it's easy to get confused about boiler servicing. We clarify who organises and who pays for what, and why keeping the certificates protects both tenant and landlord.
24 September 2026 · 8 min read
Install or replaceAir-to-water heat pump in Brussels: where to install it without disturbing the neighbours
In the city, the location of an air-to-water heat pump needs careful thought before installation, not after the first complaint from a neighbour. We run through the distance, orientation and equipment-choice criteria that help you avoid unpleasant surprises.
23 September 2026 · 7 min read
Breakdowns & repairsBoiler heats water but not the radiators: understanding the fault
Domestic hot water still works, but the radiators stay cold: this classic symptom often has a specific cause, from a mistakenly set summer mode to a stuck three-way valve. We explain what you can check yourself and what requires a heating engineer's intervention.
22 September 2026 · 2 min read
Breakdowns & repairsBoiler switching on and off constantly: why short cycling damages your heating system
A boiler that switches on and off several times an hour may seem harmless, but this short-cycling wears out components prematurely and pushes up your energy bill. Here are the most common causes and when to call in a technician.
21 September 2026 · 7 min read
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