Print rooms are unforgiving environments. Paper, ink and press tolerances all react to temperature, humidity and air quality, yet the boiler and ventilation plant behind them often goes unexamined until something fails. For a facility manager in the North East, a cold snap on Tyneside or Teesside can turn a marginal system into a missed deadline.
The seven strategies below treat printing press heating and ventilation as one linked system that affects print quality, staff safety and running costs. A note that applies throughout: all gas, boiler and flue work must be carried out by a Gas Safe registered engineer, and you can verify registration on the Gas Safe Register. The scenarios are illustrations, not case studies.
Paper is hygroscopic: it takes up and releases moisture as the surrounding air changes. When conditions swing, sheets curl, edges wave, registration drifts and webs become more prone to breaking. This is why stability matters more than a high temperature. Turning the heating up does not fix a quality problem caused by variation.
Suppose a Newcastle print shop sees paper curl every cold Monday. The heating is off at weekends, the building recovers slowly, and the paper store, which sits against an external wall, drifts well away from the pressroom's conditions. A humidity logger would show the pattern within a few weeks, and an optimum start schedule that brings the building up to temperature before the first shift would remove it.
To put this into practice:
The common mistake is chasing a single temperature figure while ignoring the swings around it. A room that averages the right number but moves several degrees overnight and at weekends will still cause trouble, and the paper store often drifts unnoticed because nobody works in it.
Measure the hours per week outside the agreed temperature and humidity band, and track waste or web breaks that can be linked to environmental causes. If both fall after schedule changes, the approach is working.
A press hall is nothing like an office. It usually has a high ceiling, large air volume, frequent door movements and significant heat gain from the machines themselves. Offices and finishing areas have different demands again. One heating loop with one control point cannot serve all of them, so someone is always too hot or too cold.
Imagine a Sunderland site that heats its offices and a high-ceilinged press hall from a single loop. The offices overheat while the hall stays cold, and the thermostat in the office area keeps the whole system satisfied. Separate zones, each with its own controls, let the hall be heated to its own requirement without cooking the admin team.
Start with the load, not the equipment:
The classic pitfall is replacing like-for-like without reassessing the load. Presses get replaced, extraction is added, buildings are partitioned, and the old boiler rating may no longer fit. An oversized boiler tends to short-cycle, switching on and off frequently, which wastes fuel and increases wear. If your boiler is at end of life, treat it as a chance to resize properly.
Measure boiler cycling frequency, how consistent each zone's temperature is, and gas consumption against degree days, which separates the effect of the weather from the effect of your changes. Our commercial boiler services cover component replacement and repairs where existing plant needs attention.
Boilers tend to fail when demand is highest, which in the North East means the first properly cold spell in October or November. A service in late summer or early autumn finds worn components, failing controls and combustion problems while there is still time to fix them without disruption. It also supports your duties under the Health and Safety at Work Act 1974 to keep plant safe, and gas appliances in workplaces fall under the Gas Safety (Installation and Use) Regulations 1998.
Consider a Teesside site whose September service finds a worn component on the boiler. It is replaced before October, rather than failing mid-job during a cold week when the press hall cannot hold temperature. The cost of that visit is small compared with a day of lost production.
A sensible routine looks like this:
The common mistake is servicing only after a fault, or leaving it until the first cold week, when engineers are at their busiest and your slot options narrow. A related one is filing the report without acting on the defects it flags.
Measure unplanned breakdowns per heating season, whether every boiler has a completed service record, and how long flagged defects take to resolve. Our annual inspection and maintenance services are built around this pre-season timing.
Printing generates volatile organic compounds (VOCs) from inks, washes and cleaning solvents, along with ink mist and paper dust. General ventilation dilutes these contaminants but does not stop people breathing them. Local exhaust ventilation (LEV) captures them at the source, before they reach the breathing zone, and uses far less air than trying to dilute the whole hall.
Take a wash-up area where staff rely on roller-shutter doors being open for fresh air. In winter the doors get closed, fumes build up, and when they are open the hall is chilled. A captor hood at the wash-up point would improve air quality and avoid dumping heated air outside.
The route to a sound design:
The usual errors are relying on dilution ventilation alone, and neglecting LEV testing and filter maintenance. A hood that is blocked, damaged or poorly positioned gives false reassurance.
Measure LEV examination results, exposure monitoring outcomes where monitoring is carried out, and staff-reported air quality issues. Remember that ventilation is a safety and compliance matter, not only a comfort one.
Every cubic metre of air extracted from a building has to be replaced from somewhere. If it is not supplied deliberately, it is drawn in through gaps, doors and, critically, flues. A boiler in a plant room needs a reliable supply of combustion air and a flue that discharges properly. A new extract fan can upset both without anyone realising.
Imagine an extract fan is fitted to a press hall and, soon afterwards, a plant room boiler begins to lock out intermittently. The room has become negatively pressured, starving the burner of air and disturbing the flue. A Gas Safe registered engineer would identify the air supply issue. Left unresolved, poor combustion can produce carbon monoxide.
The sequence matters:
The common mistake is treating extraction upgrades and boiler air supply as separate projects, often handled by different contractors who never speak. Make sure both are considered together. Check current ventilation requirements for gas appliances as of 2026, as the engineer will work to the standards that apply to your installation.
If you suspect a gas leak, leave the area immediately and call the National Gas Emergency Service on 0800 111 999. Do not try to investigate or fix it yourself.
Measure flue gas and combustion readings at each service, boiler lockout frequency, and CO alarm test records.
Presses, dryers and compressors turn a lot of electrical energy into heat, and extract systems throw warm air outside. Recovering some of it reduces the heating the boiler has to provide. The gain depends entirely on the quality of the heat source and how close it is to where the heat is needed.
For example, imagine warm air from a compressor room being ducted to pre-warm the paper store. The air is clean, the source is steady and the destination is close. Any saving would need to be measured on site rather than assumed, because it depends on running hours and how the building behaves.
A cautious approach:
The main pitfall is recovering heat from solvent-laden extract air without confirming that the equipment is suitable. Contaminants can foul heat exchangers, and recirculating polluted air back into the workspace would defeat the purpose of the LEV in strategy 4. Clean sources such as compressor rooms are the safer place to start.
Measure gas consumption in kWh, normalised for weather, before and after installation. Without that comparison, you cannot say whether the project paid back.
Good plant with poor controls still produces unstable conditions. Weather compensation adjusts the boiler's flow temperature to outside conditions, which smooths output and avoids overshoot. Optimum start learns how long the building takes to warm up and starts heating as late as possible to hit the target time. Zone controls keep each area on its own schedule.
Suppose a Middlesbrough site fits weather compensation and zone controls. Morning temperature spikes smooth out, and the maintenance contract in place gives a clear emergency callout route if something does fail. The controls reduce the chance of a fault, and the contract reduces its cost when it happens.
To build this up:
The common mistake is installing controls and never reviewing the schedules or alerts. Occupancy changes, shifts move, and settings go stale. Put a review in the diary at least once a year, ideally alongside the pre-season service. Our FAQ answers common questions about how contracts and callouts work.
Measure response time to callouts, the number of out-of-band alerts, and downtime hours attributable to heating.
Begin with the pre-season Gas Safe service, and have the engineer check combustion air against any existing or planned extraction at the same visit. Those two steps protect safety and uptime, and they cost little next to a failed boiler or a compromised flue.
After that, work through controls and monitoring, then zoning, then heat recovery. Controls and logging show you where the real problems are, which makes the larger zoning and recovery decisions better informed. LEV testing and COSHH reviews should run in parallel, since they are legal obligations rather than improvements.
Commercial Boiler Solutions is Gas Safe registered, holds a 5-star customer rating, and supports commercial properties across the North East and Northumberland, from Newcastle and Sunderland to Middlesbrough and North Yorkshire. We can help with maintenance, annual inspections and emergency callout cover. Learn more about our services