Run the water and then close of the faucet quickly. If you hear a bang, that's water hammer. You need a shock suppressor/expansion tank. Also check that the water pressure in your building isn't too high. Tell the owner that water hammer can damage the plumbing in your building

Thank you!! I tested it out and maybe it’s not water hammering... ah!! It definitely sounds like a pipe that’s connect to our heater is vibrant though 💆🏻‍♀️

Doing the described test will not be definitive as to whether you've got water hammer. If you are hearing the noise every 30-40 minutes all night, it is not being caused by a faucet being turned on and off.

It could, however, be associated with your heating system.

Also, water hammer requires a unique local piping configuration. One faucet might produce a water hammer while a faucet in another room might not.

Best of luck.

Could you post a video with a sound track including the "tapping" noise?

Baseboard Heater Noise Types.

https://www.minisplitwarehouse.com/

Baseboard heaters have few moving parts, so they don’t make much operational noise. However, some common sounds may be heard, and others that are less common, which provide information about potential problems the heater may be developing.

Pinging

Many electric and hydronic baseboards produce a pinging sound. It is commonly caused by the expansion and contraction of the thin metal vanes within the baseboard as the heat or cool. The baseboard heater noise is greater if some fins have been bent and rub each other as they expand or contract.

Clicking

Baseboard clicking can have two causes. If you hear the clicking as the unit heats up or cools down, it is the metal adjusting to the temperature changes. A clicking sound that occurs only when the heater turns on or off is a switch relay. It may come from the baseboard, or from the wall-mounted thermostat.

Banging

Hydronic baseboards can develop air bubbles, which create air pressure. As the pressure builds up, it causes a banging sound within the heater’s or delivery pipes as the liquid forces through the air blockage.

Ticking

The sound the heating rod inside the heating tube makes as it heats up or cools down.

Gurgling

A gurgling inside the heater or supply pipes is often caused by low pressure in the boiler. The sound may also be caused by air inside the unit or system. It may also be due to the heater being out of level.

Trickling

A trickling or running water sound may indicate low pressure in the system, air bubbles in the system, or the baseboard not being mounted level.

Humming

Humming from the baseboard may be the result of a pinched part of the metal housing. It may have occurred when a wall was being painted, or the unit may have been banged by furniture being rearranged.

Popping

Popping is a baseboard heaters noise that may occur when the baseboard is heating up or cooling down as metal components shrink or expand and ‘pop’ back into place.

Buzzing

A buzzing sound is associated with electricity and may be the result of a power supply incorrectly matched with the baseboard, especially on new installations. Another possibility is that the heating pipe or vanes are touching the back of the baseboard housing due to a curvature in the wall. When the element heats, it causes the metal to vibration against the back, causes a buzz.

Knocking

Hydronic systems may have a knocking sound when hot liquid displaces cool or cold liquid causing the metal pipes to expand and knock.

Baseboard Heater Making Noise When Off

Hydronic baseboards that are connected to a boiler may continue to produce sounds even when the system is off-season. Some boilers continue to circulate liquid, and cool liquid in a warm room can even have expansion and contraction noises. Changes in pressurization during the off season can also cause sounds.

Electric baseboards shouldn’t make any noise when off. However, some basement, bathroom, or garage baseboards have on-board thermostats that prevent them from going below 40°F to avoid freezing. There may be a clicking sound as it checks the temperature, but unless it’s below that temperature, they shouldn’t

Ear plugs. I had really noisy upstairs neighbors over 12ys ago. I started wearing ear plugs. I still wear them even after I moved to quiet sfh.

mini-split warehouse,

Post reported!

Plagiarized from Plagiarized Sources

Here is a video of the noise!!

https://drive.google.com/file/d/15lJMezx3443q4klrwrmNiXEPvgmNFR-9/view?usp=sharing

I cannot view the video...

I have hot water hydronic (radiator) heat in my 1940 house, and very low level creaks, groans and pops are not unusual. When in heat position my boiler keeps the water in the heating system at about 100 degrees until the thermostat calls for heat. Then it starts the circulating pump and fires up the boiler to get more heat. I initially have 100 degree water circulating, but it may reach as high as 140 degrees if the heat has to run for quite a while (maybe raise the temp up 6-8 degrees).

During that change in heat the radiators and the pipes in the wall expand slightly, and some pipes are right up against the wood in the house, so they bind and make slight noises. The radiators themselves also expand, and the cast iron sometimes makes a groaning noise.

I would ask the landlord to bleed the system to get all the air out, which will make it more effective and also get rid of noise from any air bubbles. However, beyond that you may have to live with any noise. As the weather gets colder you will really learn to appreciate the hot water heat, since it does not dry out the air and lower humidity like a forced air system.

Bruce