NuvoH20 offers a saltless water softener that works through a process called chelation, which prevents hard water minerals from forming scale without the use of magnets or electricity. NuvoH20 also claims its water softeners break up existing scale.
NuvoH2O softeners are compact and can typically be installed in less than an hour. However, if you do need professional installation, NuvoH2O will help connect you to a technician.
These systems start at less than $1000 and are available at various online retailers, including Amazon.com. The systems require you to replace a cartridge every six months to a year, at a cost of less than $100.