Reyds.Heat pumps · Boilers · Steam

Gap · South Africa

Gap Calorifier Repairs in Johannesburg

Gap calorifier repairs across Gauteng. Common domestic and light commercial storage plant across Gauteng.

Gap equipment we work on includes geysers and storage cylinders. Commonly replaced parts on this brand are elements, thermostats, valves, and we keep or source these against the unit's model and serial plate rather than by guesswork.

Calorifiers fail predictably: the coil scales or perforates, the steam control valve sticks, or the condensate trap fails and floods the coil. A perforated coil shows up as rising tank pressure or contaminated condensate and needs isolation before it damages the rest of the circuit.

Control scheduling is often the cheapest available improvement, particularly where heating windows overlap with peak tariff periods. Where a site runs on borehole water, hardness and iron content shorten service intervals considerably and are worth testing before setting a maintenance plan.

Parts
Elements, thermostats, valves
Turnaround
Coil replacement usually needs an isolation window; scoped after testing.
Call
069 268 0988

What is included

Scope of work

  • Coil pressure testing, repair and replacement
  • Steam control valve and actuator repairs
  • Trap, strainer and condensate return repairs
  • Tank descale and internal inspection
  • Thermostat, sensor and safety valve replacement
  • Insulation and cladding renewal

Technical detail

Specifications

TypesVertical, horizontal, storage and semi-storage
Heat sourceSteam, HTHW, LTHW
TestingHydraulic coil test and tank integrity check
MaterialsMild steel, stainless and copper coil options
Gap rangesGeysers and storage cylinders

When to call

Symptoms we see on this equipment

  • Condensate contaminated with treated water
  • Slow reheat after draw-off
  • Control valve hunting or stuck open
  • Visible corrosion at the coil flange

FAQs

Frequently asked questions

Are you an authorised Gap agent?

We are an independent specialist. We repair and maintain Gap equipment using correct-specification parts, and where a unit is still under manufacturer warranty we will tell you before doing anything that could affect it.

Can you get Gap parts?

Elements, thermostats, valves for Gap are ordered against the model and serial plate. Where an original part has a long lead time we will offer a compatible equivalent and say clearly which one is being fitted.

What does Gap calorifier repairs include?

Coil pressure testing, repair and replacement, Steam control valve and actuator repairs, Trap, strainer and condensate return repairs, plus verification that the unit performs to the manufacturer's stated figures after the repair.

Where do you service Gap equipment?

Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria. Call 069 268 0988 to confirm attendance for your address.

Is it worth repairing an older Gap unit?

We give a repair-versus-replace figure with the quotation so the decision is based on cost, not on guesswork. Common domestic and light commercial storage plant across Gauteng.

Gap calorifier repairs

Serving Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.