Poor flow of hot water

Cheapest option woukd be to put a hot water booster pump . Or change the gravity fed system for an unvented cylinder type removing the cold water storage tank and having equal mains pressure without the need for any pumps providing you have adequate mains pressure. 1.5 bar minimum

In older properties, this type of setup is usually a gravity-fed hot water system. The hot water is stored in a cylinder, typically supplied by a cold water storage tank (often in the loft). Because the system relies on gravity rather than mains pressure, the hot water pressure is naturally lower than the cold water, which comes directly from the mains. Why the pressure is low and slow: Gravity-fed system: Hot water pressure depends on the height of the cold water tank above the outlet. This limits flow. Distance from cylinder: It can take time for hot water to reach taps, especially in kitchens further from the cylinder. Older pipework: Narrow or scaled pipes can further reduce flow. Mixed supply: Cold is mains-fed (high pressure), hot is tank-fed (low pressure), so the difference is noticeable. Is this normal? Yes — for this type of system, lower pressure and slower hot water delivery is normal, particularly at sinks. You will generally never get the same pressure as mains cold water without upgrading the system. if needed: Install a shower or hot water pump (where suitable) to boost pressure to specific outlets Convert to an unvented (mains-pressure) cylinder – best long-term solution, but more costly Pipework upgrades if pipes are very old or restricted Short-term improvements like flow optimisers or pipe balancing (limited benefit) Any upgrades involving pumps or unvented cylinders must comply with UK Building Regulations and be installed by a qualified professional (G3 certified for unvented systems).

Yes, That type of system comes with lack of water flow, You can fit a water pump on hot water outlet after hot water tank, Convert whole system ti either combination boiler and do away with hot water tank or convert to pressurised sealed system.

If it is open vented system the hot water will not be as good as the cold because the hot is gravity fed if it's invented the pressure should equal