HP Proliant 1U standing vertically inside a water heater cabinet! It is running Proxmox. The 10-15 services for my LAN isn't creating enough heat that I can hea

HP Proliant 1U standing vertically inside a water heater cabinet! It is running Proxmox. The 10-15 services for my LAN isn't creating enough heat that I can hear it, except if the dryer is also on and it is a hot day and Plex is being used... There's also a enterprise HP switch where I disabled the fan and it reports "temperature normal" even though it is in the same cabinet. Fibre to OPNsense in the living room. It doesn't have to be complicated or pretty.